Checklist of Sphagnum-dwelling testate amoebae in Bulgaria.

BACKGROUND: Until now, a complete checklist of Sphagnum-dwelling testate amoebae in Bulgaria has never been published. Records for species diversity and distribution in the country were scattered in many faunistic and ecological publications. The aim of the present study is to summarise all data for the species distribution at the level of country by reviewing the existing literature and by additional data obtained in our research over the past two years. NEW INFORMATION: The checklist comprises 171 species, classified into 43 genera, 20 families, three orders, three classes and three phyla. We present data for 16 new Sphagnum-dwelling testate amoebae in Bulgaria and new distribution data for 134 species. Of them, 99 species are recorded from Stara Planina Mt., for which there was no available data to date. Additionally are recorded 69 new species for Pirin Mt., 21 for Vitosha Mt. and 18 for Rila Mt. Thirty six species are synonymised according to the latest taxonomic changes. Two misidentified taxa (Euglypha brachiata Penard, 1902 and Difflugia compressa var. africana Gauthier-Lièvre et Thomas, 1958) are transferred into valid species E. acanthophora and Zivkovicia compressa, respectively. Three of the recorded species have not been included in the checklist, because they are currently not refering to testate amoebae (Cochliopodium bilimbosum (Auerbach 1856) and Cochliopodium echinatum Korotneef, 1879 are gymnamoebae (naked amoebae) and Microgromia elegantula (Penard 1904) = Paralieberkuehnia elegantula (Penard 1904) is freshwater foraminifera).

Introduction

Testate amoebae are a polyphyletic assemblage of at least three major, unrelated taxonomic groups of eukaryotes (Adl SM et al. 2012). They are present in most terrestrial and freshwater environments and more marginally in brackish and marine habitats. They are especially abundant and diverse in mosses. Research on testate amoebae have increased significantly over the past two decades due to their increasing use in different applied aspects: as a bioindicators for palaeoecological studies, in environmental monitoring, pollution hazards, ecotoxicology, studies on their role in the cycling of elements in terrestrial ecosystems, biogeographical and evolutionary studiesetc. (Aoki, Yoshiyuki et al. 2007, Booth 2002, Charman 2001, Charman et al. 1998, Lamentowicz and Mitchell 2005, Mitchell et al. 2008, Nguyen-Viet et al. 2007, Swindles et al. 2008, Swindles et al. 2015, Qin et al. 2013).

Studies on -dwelling testate amoebae in Bulgaria started at the beginning of the 20th century, when Pateff (1924), Pateff (1928) published his works on freshwater in the country. He recorded a total of 118 rhizopods, of which 52 testate amoebae were from mosses in the Rila, Rhodopes and Vitosha Mountains. Later, Valkanov (1932), Valkanov (1934) published results of his studies on the fauna of alpine lakes in the Rila and Pirin Mountains and recorded many testate amoebae, which are typical inhabitants of peat mosses. Unfortunately, they were recorded along with all other species and no distinction was made amongst the species found in the lakes themselves and in the mosses from the lake shore. In the 60s and 70s of the 20th century, several publications on testate amoebae from the Vitosha, Rhodopes and Pirin Mountains were published (Golemansky 1965, Golemansky 1966, Golemansky 1968, Golemansky 1974), including a lot of data on -dwelling testate amoebae. At the end of the 20th and beginning of the 21th century, the number of publications concerning various aspects of taxonomy, systematics, morphology and ecology of sphagnicolous testate amoebae in Bulgaria increased considerably (Golemansky and Todorov 1990, Golemansky and Todorov 1993, Golemansky and Todorov 2006, Golemansky and Todorov 1985, Golemansky et al. 2006, Heger et al. 2010, Kosakyan et al. 2012, Todorov 1993, Todorov 2004, Todorov 2005, Todorov 2010, Todorov and Golemansky 1995, Todorov and Golemansky 2000, Todorov et al. 2010, Todorov et al. 2009). All data in the above-mentioned publications have never been summarised in one place and that is the reason why the main goal of the present paper is to unite this scattered information and, together with the new data obtained from our research over the past two years, to present a checklist of all known to date -dwelling testate amoebae in Bulgaria. Data on the distribution, habitats, regions, localities, altitude, authors and sources of information are provided in Suppl. material 1. Some typical and a few rare sphagnicolous testate amoebae, recorded from the country, are illustrated in Figs 1, 2, 3, 4.

Materials and methods

The data presented in the checklist are based primarily on published information concerning -dwelling testate amoebae in Bulgaria. In addition, data from our research conducted over the past two years are also included. We have tried to explore the diversity and distribution of testate amoebae in the main areas of the country where peat mosses are more widespread. Genus in Bulgaria numbers 27 species (Natcheva and Ganeva 2005) distributed in mires in mountain areas of the country above the tree belt or in mires in coniferous forest, these being an important component of habitat 91D0 (Bog Woodland) of Directive 92/43/EEC. Some of the species (e.g. (Ehrh.) Hedw., Nees, Russ., C.E.O.Jensen, (Lindb. ex. Braithw.) Sull. ex Warnst., Crome, (Schimp.) Ängstr.) are more widespread in mires of Western Stara Planina, Rhodopes, Vitosha, Rila and Pirin Mountains, where, with other bryophytes and sedges, they comprise the specific mire flora.

The material for the present study was extracted from wet mosses, gathered at Vitosha and Western Stara Planina Mountains in 2016 and Rila and Pirin Mountains in 2017. A total of 109 samples from 18 localities were sampled and examined. All data, concerning sampling localities including date, region, altitude, coordinates, moss species, as well as many physical and chemical parameters of the sampling sites, are provided in Suppl. material 2.

Testate amoebae were extracted from fresh mosses at the sampling site and concentrated by sieving (350 μm). The resulting fraction (50 ml) was observed with an optical microscope “Amplival” (Zeiss-Jena) using 40x objective and 10x ocular lens. For scanning electron microscopy (SEM), specimens were isolated by searching through small isolates of material in a petri dish. Specimens were extracted using a glass micropipette, washed several times in distilled water and then individual shells were positioned with a single-hair brush on a previously mounted double-sided adhesive tape on a standard aluminium stub and air-dried. The shells were coated evenly with gold in a vacuum coating unit. The photomicrographs were obtained using a JEOL JSM-5510, operating at 10 kV.

The checklist is annotated with information regarding the synonymous names (if available), species distribution in mosses in Bulgaria, the relevant literature sources and notes (mainly taxonomic). The higher classification used here follows Adl SM et al. 2012 and Meisterfeld (2002a), Meisterfeld (2002b). Taxonomic revision of some genera and families, as well as numerous taxonomic and nomenclature changes, based on recent molecular studies and subsequent phylogenetic reconstructions, have also been taken into account (Blandenier et al. 2017, Chatelain et al. 2013, Gomaa et al. 2013, Gomaa et al. 2017, Heger et al. 2010, Kosakyan et al. 2016a, Kosakyan et al. 2012, Kosakyan et al. 2016b, Lahr et al. 2013, Lara et al. 2007, Mazei and Warren 2012, Mazei and Warren 2014, Mazei and Warren 2015).

The list does not include separate varieties and forms recorded from Bulgaria, despite the fact that, according to the International Code of Zoological Nomenclature, article 45.6.3, when the name was published before 1961 using the abbreviation ‘var.’ or ‘f.’, it is deemed to be subspecific rather than infrasubspecific. However, due to the fact that many of these taxa have not sufficiently detailed descriptions, which in many cases are based on signs that do not have much taxonomic significance (small differences in size, the presence or absence of spines/horns and their number, the number of lobes of the aperture etc.), these taxa remain with unclear taxonomic status. So, until the clarifying of their status with the help of combined morphological and molecular approaches and full confirmation of their validity, we prefere to adopt a conservative position and consider these taxa as the product of the phenotipic plasticity of nominal species. Nevertheless, in ‘Notes’ to each nominal species, we have included all the records for these infrasubspecific taxa, in the event that some of them may be raised in rank in the future.

Checklists

Checklist of -dwelling testate amoebae in Bulgaria

Owen,1858

Cavalier-Smith, 1993

Lühe, 1913, emend. Cavalier-Smith, 1998

Carpenter, 1861, emend. Cavalier-Smith, 2009

Smirnov et al., 2005

Kent, 1880

Haeckel, 1894

de Saedeler, 1934

Cockerell, 1911

(Greeff, 1866), emend. Penard, 1902

Greeff, 1866

Greeff, 1866

Distribution

Rhodopes Mt. (Golemansky et al. 2006).

Ogden, 1985

Cockerell, 1911

(Claparede and Lachmann, 1859) Cockerell, 1911

Claparede and Lachmann, 1859

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Ehrenberg, 1843

Ehrenberg, 1832

Greeff, 1866

Maggi, 1883

Penard, 1890

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, new data).

Deflandre, 1928

Rila Mt. (new data).

Penard, 1890

Leidy, 1879 (in part)

Penard, 1902

Cash, 1905

Playfair, 1918

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1928, Golemansky 1965, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Ehrenberg, 1830

Perty, 1852

Perty, 1852

Ehrenberg, 1854

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006).

Ehrenberg, 1871

Ehrenberg, 1843

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Notes

Besides the nominal species, two infrasubspecific taxa have also been recorded: Deflandre, 1928 (Vitosha Mt.) and Playfair, 1918 (Pirin Mt., Rhodopes Mt., Rila Mt.).

Penard, 1890

Rhodopes Mt. (Golemansky et al. 2006); Vitosha Mt. (Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Perty, 1852

Wailes, 1918

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Todorov 2004, new data); Vitosha Mt. (new data).

The species has been recorded both as nominal species and as infrasubspecific taxon f. Deflandre, 1928 (Rhodopes Mt., Rila Mt.).

(Deflandre, 1928) Tsyganov and Mazei, 2006

Deflandre, 1928

Pirin Mt. (new data); Rila Mt. (new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Playfair, 1918

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Besides the nominal species, two infrasubspecific taxa have also been recorded: Deflandre, 1928 (Vitosha Mt.) and Deflandre, 1928 (Rhodopes Mt., Vitosha Mt.).

Ehrenberg, 1830

Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000); Vitosha Mt. (Golemansky and Todorov 1985,Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as infrasubspecific taxon Deflandre, 1928 (Rila Mt.).

Kosakyan, Lara, Gomaa and Lahr, 2016

Ogden, 1979

(Wallich, 1864) Netzel, 1983

Wallich, 1864

Archer, 1867

Leidy, 1879 (in part)

Owen and Jones, 1976

Medioli and Scott, 1983 (in part)

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Todorov 2004).

The species has been recorded both as nominal species and as synonym (Rhodopes Mt.).

Meisterfeld, 2002

Wallich, 1864

Leclerc, 1815

Ehrenberg, 1838

Penard, 1899

Penard, 1902

Ogden, 1983

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Vitosha Mt. (Pateff 1924, new data).

The species has been recorded both as nominal species and as synonym (Rhodopes Mt.).

Playfair, 1918

Pirin Mt. (new data); Rila Mt. (Todorov 2005, new data); Vitosha Mt. (new data).

Gauthier-Lièvre and Thomas, 1958

Rila Mt. (Todorov and Golemansky 2000); Stara Planina Mt. (new data).

Perty, 1849

Penard, 1890

Gauthier-Lièvre et Thomas, 1958

Stara Planina Mt. (new data); Rila Mt. (Golemansky and Todorov 1993).

Cash, 1909

Penard, 1902

Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (new data); Stara Planina Mt. (new data).

(Penard, 1902) Jung, 1942

Penard, 1902

Gassowsky, 1936

(Gassowsky, 1936) Ogden and Hedley, 1980

Ogden, 1983

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as synonym (Rhodopes Mt., Rila Mt., Vitosha Mt.).

Ogden, 1983

Penard, 1899

Gauthier-Lièvre et Thomas, 1958.

Pirin Mt. (new data); Vitosha Mt. (Todorov 1993, Todorov and Golemansky 1995).

Penard, 1890

Hopkinson, 1909

(Playfair, 1918) Gauthier-Lièvre et Thomas, 1958

Gassowsky, 1936

Jung, 1936

Jung, 1936

Dekhtyar, 1993

Wailes, 1912

Mereschkowsky, 1877

(Jung, 1936) Ogden, 1983

Penard, 1902

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as synonym (Rila Mt., Vitosha Mt.).

Penard, 1902

Rila Mt. (Todorov and Golemansky 2000).

Dujardin, 1837

Wallich, 1864

(Wallich, 1864) Leidy, 1877

Godeanu, 1972

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Todorov 1993, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as synonym (Rhodopes Mt., Rila Mt., Vitosha Mt.).

Ogden, 1983

Pirin Mt. (new data); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Penard,1890

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990).

Leidy, 1874

Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006)

Penard, 1890

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Penard, 1893

Rila Mt. (Todorov 2004).

Frenzel, 1892

Rila Mt. (Todorov 2005); Vitosha Mt. (new data).

(Kourov, 1925) Ogden, 1983

Penard 1902

Cash, 1909

Kourov, 1925

Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990).

The species has been recorded both as nominal species and as the infrasubspecific taxon (Vitosha Mt.).

Rampi, 1950

Pirin Mt. (new data); Rila Mt. (Todorov 2004, Todorov 2005); Vitosha Mt. (new data).

Penard, 1902

Playfair, 1918

Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov 2004, Todorov 2005, new data); Vitosha Mt. (new data).

Ehrenberg, 1838

Penard, 1890

(Penard, 1899) Ogden, 1983

Jung, 1942

Gauthier-Lièvre et Thomas, 1958

Cash and Hopkinson, 1909

Thomas, 1954

(Thomas, 1954) Ogden, 1983

Penard, 1899

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Besides the nominal species, the synonyms (Rhodopes Mt., Rila Mt., Vitosha Mt.), (Rhodopes Mt., Vitosha Mt.), (Rila Mt., Vitosha Mt.) and infrasubspecific taxa (Vitosha Mt.) and (Rila Mt., Vitosha Mt.) have also been recorded.

Hopkinson,1909

Penard, 1890

Penard, 1890

Penard, 1902

Wailes and Penard, 1911

(Penard, 1890) Ogden, 1983

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as synonym (Rhodopes Mt., Rila Mt., Vitosha Mt.).

Cash, 1909

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov 2004, Todorov 2005).

Penard, 1902

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Penard, 1902

Godeanu, 1972

Beyens et Chardez, 1994

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Pateff 1924, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Perty, 1849

Rhodopes Mt. (Pateff 1924); Rila Mt. (Pateff 1924); Vitosha Mt. (Pateff 1924).

(Chardez, 1956) Ogden, 1983

Chardez, 1956

Rila Mt. (Todorov 2004).

Penard, 1891

Pirin Mt. (Golemansky 1974, new data); Rila Mt. (Pateff 1924, Golemansky and Todorov 1993, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Ogden, 1983

Rila Mt. (Todorov and Golemansky 2000).

Penard, 1910

Pirin Mt. (Golemansky 1974).

Carter, 1864

Leidy, 1879

Playfair, 1917

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006).

Deflandre, 1926

Rhodopes Mt. (Golemansky et al. 2006).

Penard, 1902

Blanc, 1892

Penard, 1908

Chardez, 1956

Schönborn, 1965

Laminger, 1971

Laminger, 1971

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Vitosha Mt. (Pateff 1928, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990).

The species has been recorded as nominal species, as synonym (Vitosha Mt.), as infrasubspecific taxon (Vitosha Mt.) and as sp. (Vitosha Mt.).

Medioli and Scott, 1983

(Penard, 1902) Ogden, 1987

Penard, 1902

Jung, 1942

Godeanu, 1972

(Penard, 1902) Ogden, 1983

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as synonym (Rhodopes Mt., Rila Mt., Vitosha Mt.).

(Ogden and Zivkovic, 1983) Ogden, 1987

Ogden and Zivkovic, 1983

Pirin Mt. (new data); Rila Mt. (new data).

(Leidy, 1874) Medioli and Scott, 1983

Leidy, 1874

Leidy, 1879

(Leidy) Schouteden, 1906

(Leidy, 1874) Ogden, 1983 (in part)

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (new data); Vitosha Mt. (new data).

Rhumbler, 1896

(Penard, 1893) Schouteden, 1906

Penard, 1893

Rhumbler, 1896

Pirin Mt. (new data); Rila Mt. (Golemansky and Todorov 1993); Vitosha Mt. (Todorov 1993, Todorov and Golemansky 1995).

Hopkinson, 1920

Rhumbler, 1896

(non

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Todorov 2004, Todorov 2005); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924).

The species has been recorded both as nominal species and as synonym (Rhodopes Mt., Rila Mt., Vitosha Mt.).

Ogden, 1987

(Carter, 1864)

Carter, 1864

Penard, 1899

Penard, 1902

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as synonym (Pirin Mt., Vitosha Mt.). Furthermore, in several publications on the testate amoebae from Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995), the infrasubspecific taxa Gauthier-Lièvre et Thomas, 1958 has erroneously been recorded, because the description of the found individuals fully corresponds to .

(Penard, 1902) Ogden, 1987

Penard, 1902

(Leidy, 1874) Ogden, 1983 (in part)

Rhodopes Mt. (Golemansky 1968); Rila Mt. (Todorov 2004).

The species has been recorded both as nominal species and as synonym (Rhodopes Mt.).

Jung, 1942

Stein, 1857

(Ehrenberg, 1830) Stein, 1857

Ehrenberg, 1830

Perty, 1852

Claparède et Lachmann, 1859

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Besides the nominal species, two infrasubspecific taxa Deflandre, 1929 (Rhodopes Mt., Rila Mt., Vitosha Mt.) and Deflandre, 1929 (Vitosha Mt.) have also been recorded.

Deflandre, 1929

Ehrenberg, 1838

Ehrenberg, 1854

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Besides the nominal species, the infrasubspecific taxon Deflandre, 1929 has also been recorded (Rila Mt., Vitosha Mt.).

(Wallich, 1864) Deflandre, 1929

Wallich, 1864

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov 2004, Todorov 2005, Todorov and Golemansky 2000, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

(Ehrenberg, 1838) Penard, 1902

Ehrenberg, 1838

Ehrenberg, 1841

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006); Rila Mt. (Pateff 1924, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1990, new data).

The species has been recorded both as nominal species and as synonym (Rhodopes Mt., Rila Mt., Vitosha Mt.).

Bonnet, 1959

Rila Mt. (new data).

(Penard, 1890) Deflandre, 1929

Penard, 1890

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, new data).

(Ehrenberg, 1841) Leidy, 1879

Ehrenberg, 1841

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Todorov 1993, Todorov and Golemansky 1995, new data).

(Penard, 1890) Thomas, 1959

Penard, 1890

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, new data); Vitosha Mt. (Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995).

Deflandre, 1929

Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov 2005).

Deflandre, 1929

Rila Mt. (Todorov 2004).

Penard, 1890

Rhodopes Mt. (Golemansky et al. 2006).

Deflandre, 1929

p. p. Leidy, 1879, PL. XVIII, figs. 15-16

p. p. Penard, 1902, p. 299, figs. 13-14

Rhodopes Mt. (Golemansky et al. 2006).

Deflandre, 1929

Pirin Mt. (new data); Rila Mt. (new data); Stara Planina Mt. (new data).

Bonnet and Thomas, 1955

Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993).

(Penard, 1890) Deflandre, 1929

Penard, 1890

p. p. Leidy, 1879, PL. XVIII, figs. 20-21

p. p. Penard, 1902, p. 299, figs. 8, 11, 12

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Besides the nominal species, the infrasubspecific taxon Deflandre, 1929 has also been recorded (Vitosha Mt.).

(Cash, 1905) Deflandre, 1929

Cash, 1905

Pirin Mt. (new data); Vitosha Mt. (Todorov 1993, Todorov and Golemansky 1995).

(Deflandre, 1929) Bonnet and Thomas, 1955

Deflandre, 1929

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Loeblich and Tappan, 1964

Deflandre, 1929

(Penard, 1902) Deflandre, 1929

Penard, 1902

Vitosha Mt. (Pateff 1928, Golemansky 1965, Golemansky and Todorov 1990, new data).

The species is recorded both as nominal species and as synonym (Vitosha Mt.).

Deflandre, 1929

Deflandre, 1929

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Deflandre, 1929

Deflandre, 1929

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, new data).

Golemansky, 1974

Pirin Mt. (Golemansky 1974); Vitosha Mt. (Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Thomas, 1960

Rila Mt. (new data).

Penard, 1912

(Leidy, 1879) Penard, 1912

Leidy, 1879

(Leidy, 1879) Volz, 1929

Rila Mt. (new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, new data).

Bonnet and Thomas, 1960

Deflandre, 1953

(Penard, 1907) Deflandre, 1953

Penard, 1907

Penard, 1912

Pirin Mt. (new data); Rila Mt. (new data).

Penard, 1910

Penard, 1910

Jung, 1936

Pirin Mt. (Golemansky 1974, new data); Rila Mt. (new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Thomas, 1955

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, new data); Stara Planina Mt. (new data); Vitosha Mt. (Todorov 1993, Todorov and Golemansky 1995, new data).

Bonnet, 1959

Vitosha Mt. (Todorov 1993, Todorov and Golemansky 1995).

Penard, 1910

Bartoš, 1947

Pirin Mt. (Golemansky 1974); Rila Mt. (Golemansky and Todorov 1993).

Bonnet, 1959

Vitosha Mt. (Todorov 1993, Todorov and Golemansky 1995).

(Bonnet et Thomas, 1955)

Stara Planina Mt. (new data).

(Schulze, 1877) Kosakyan et Lara, 2012

(Stein, 1857) Schulze, 1877

(Leidy, 1874) Leidy, 1879

Leidy, 1874

Taránek, 1881

Vitosha Mt. (Todorov 1993, Todorov and Golemansky 1995).

(Leidy, 1874) Leidy, 1875

Leidy, 1874

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000,Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965,Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

(Leidy, 1874) sensu Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

Mitchell et Lara, 2013

Stara Planina Mt. (new data); Vitosha Mt. (new data).

(Ehrenberg 1848) Leidy, 1879

Ehrenberg 1848

Ehrenberg 1848

Ehrenberg 1848

Ehrenberg 1854

Ehrenberg 1871

Ehrenberg 1874

Leidy 1874

Taranek 1882

(Steinecke) Van Oye 1933

Deflandre 1936

Jung 1936

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, Kosakyan et al. 2012; new data).

The species has been recorded as nominal species, as synonym (Pirin Mt., Rhodopes Mt., Rila Mt., Vitosha Mt.) and as infrasubspecific taxon (Vitosha Mt.).

Leidy, 1874

Leidy, 1874

Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Stara Planina Mt. (new data).

Kosakyan et Lara, 2013

Pirin Mt. (new data); Rila Mt. (new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Penard, 1890

Pirin Mt. (new data); Rila Mt. (Pateff 1924, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Kosakyan et Mitchell, 2013

Pirin Mt. (new data); Rila Mt. (new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Penard, 1890

Penard, 1890

Vitosha Mt. (new data).

(Leidy, 1879) Awerintzew, 1906

Leidy, 1879

Vejdovsky, 1882

Penard, 1902

Cash, 1909

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Golemansky and Todorov 1993, Todorov and Golemansky 2000, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as synonyms (Rila Mt, Vitosha Mt.), (Rhodopes Mt., Rila Mt.) and (Pirin Mt., Rhodopes Mt., Vitosha Mt.).

Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

(Penard, 1890) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

Penard, 1890

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

So far, all records for the species have been as .

Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

Todorov, Bankov and Ganeva, 2018

Stara Planina Mt. (Todorov et al. 2018).

(Todorov, 2010) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

Todorov, 2010

Vitosha Mt. (Todorov 2010, new data).

The species has been recorded as .

(Deflandre, 1936) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

Deflandre, 1936

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, Kosakyan et al. 2012, new data).

So far, all records for the species have been as .

(Deflandre, 1936) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

Deflandre, 1936

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, Kosakyan et al. 2012, new data).

So far, all records for the species have been as .

(Penard, 1902) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

Penard, 1902

Pirin Mt. (new data); Rila Mt. (Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Todorov 1993, Todorov and Golemansky 1995, Kosakyan et al. 2012, new data).

So far, all records for the species have been as .

Lara et Todorov, 2012

(Taranek, 1882)

Taranek, 1882.

Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1990).

All records for the species have been as (Rhodopes Mt., Vitosha Mt.). This species is with doubtful identity since it is sharing overlapping characters with and with .

(Penard, 1890) Lara et Todorov, 2012

Penard, 1890

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, Kosakyan et al. 2012, new data).

All records for the species (except these in Kosakyan et al. 2012) have been as .

(Gauthier-Lièvre and Thomas, 1958) Lara et Todorov, 2012

Gauthier-Lièvre and Thomas, 1958

(Gauthier-Lièvre and Thomas, 1958) Todorov, Golemansky and Meisterfeld, 2010

Pirin Mt. (new data); Rila Mt. (new data); Stara Planina Mt. (new data); Vitosha Mt. (Todorov et al. 2010, new data).

The species has been recorded by the synonymous name . It should be noted that Mazei and Warren (2014) erroneously synonymised with (Penard, 1890) Gautier-Lièvre et Thomas, 1958, because they have not taken into account the fact that this species has recently been transferred from the genus into the genus and subsequently in the newly described genus (Todorov et al. 2010, Kosakyan et al. 2012).

(Brown, 1911) Lara et Todorov, 2012

Brown, 1911

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

So far, all records for the species have been as .

(Deflandre, 1936) Lara et Todorov, 2012

Deflandre, 1936

Rhodopes Mt. (Golemansky et al. 2006).

The species has been recorded by the synonymous name .

Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

(Archer, 1867) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

(Archer, 1867) Leidy, 1879

Rila Mt. (Golemansky and Todorov 1993); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995).

So far, all records for the species have been as .

(Cockerell, 1909) sensu Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

(Taranek, 1882)

Taranek, 1882

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, Kosakyan et al. 2012, new data).

So far, all records for the species (except this one of Kosakyan et al. 2012) have been as the infrasubspecific taxon (Rhodopes Mt., Rila Mt., Vitosha Mt.).

(Wallich, 1864) Cockerell, 1909

Wallich, 1863

Wallich, 1864

Wallich, 1864

Ehrenberg, 1871

Ehrenberg, 1871

Ehrenberg, 1871

Ehrenberg, 1871

Schulze, 1875

Deflandre, 1936

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004,Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, Kosakyan et al. 2012, new data).

Besides the nominal species, the infrasubspecific taxon Wailes et Penard, 1911 has also been recorded (Rhodopes Mt., Rila Mt., Vitosha Mt.).

Gauthier-Lièvre, 1953

Pirin Mt. (Golemansky 1974).

Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell and Lara, 2016

Pirin Mt. (new data); Rila Mt. (new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Bovee, 1985

Jung, 1942

Penard, 1902

(Hertwig and Lesser, 1874) Hopkinson, 1909

Hertwig and Lesser, 1874

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

(Penard, 1890) Penard, 1902

Penard, 1890

Leidy, 1879 (in part)

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004,Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (new data)

Penard, 1902

Leidy, 1879 (in part)

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006); Rila Mt. (Todorov 2004, Todorov 2005, new data); Vitosha Mt. (Pateff 1924).

Penard, 1902

Rhodopes Mt. (Golemansky et al. 2006); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Jung, 1942

Penard, 1890

Penard, 1902

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, new data).

Penard, 1890

Bonnet and Thomas, 1955

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1928, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as synonym (Rila Mt., Vitosha Mt.), as well as infrasubspecific taxon Bonnet and Thomas, 1955 (Rhodopes Mt., Rila Mt., Vitosha Mt.).

Deflandre, 1928

(Wailes and Penard, 1911) Deflandre, 1928

Wailes and Penard, 1911

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1928, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as synonym (Vitosha Mt.).

Vucetich, 1974

(Carter, 1870) Murray, 1870

Carter, 1870

Murray, 1870

West, 1905

Rhodopes Mt. (Pateff 1928, Golemansky et al. 2006); Vitosha Mt. (Pateff 1928, Golemansky and Todorov 1990).

The species has been recorded as synonym (Rhodopes Mt., Vitosha Mt.).

(Penard, 1890)

Penard, 1890

Penard, 1893

Leidy, 1879 (in part)

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

So far, all records for the species have been as synonyms (Pirin Mt., Rhodopes Mt., Rila Mt., Vitosha Mt.), (Rhodopes Mt., Rila Mt., Vitosha Mt.), as well as infrasubspecific taxa Gauthier-Lièvre, 1853 (Rila Mt.).

(Penard, 1899)

Penard, 1899

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded as synonym (Rhodopes Mt., Rila Mt., Vitosha Mt.).

Schouteden, 1906

(Penard, 1902) Schouteden, 1906

Penard, 1902

Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006).

The species has been recorded both as nominal species and as synonym (Rhodopes Mt.).

Leidy, 1879

Leidy, 1879

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Besides the nominal species, two infrasubspecific taxa Penard, 1899 (Rila Mt.) and Deflandre, 1928 (Vitosha Mt.) have also been recorded.

Penard, 1890

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

(Leidy, 1874)

Leidy, 1874

Leidy, 1876

Leidy, 1879

Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993).

Penard, 1890

Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov 2005, new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990).

Schlumberger, 1845

Penard, 1902

Penard, 1893

Penard, 1902

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968,Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Thomas and Gauthier-Lièvre, 1859

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Rhumbler, 1896

Leidy, 1879 (in part)

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

(Ehrenberg, 1840) Bütschli, 1880

Ehrenberg, 1840

Schlumberger, 1845

Cohn, 1853

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Ehrenberg, 1838

(Claparede and Lachmann, 1858)

Claparede and Lachmann, 1858

Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006).

Cavalier-Smith, 2002

Patterson, 1989, emend. Adl et al., 2005

Dick, 2001

(Poch, 1913) Gomma, Mitchell and Lara, 2013

Poch, 1913

Loeblich and Tappan, 1961

(Archer, 1877) Loeblich and Tappan, 1961

Archer, 1877

Archer, 1877

Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded as synonym (Rhodopes Mt., Vitosha Mt.).

Cavalier-Smith, 1998, emend. Adl et al., 2005

Cavalier-Smith, 2003

Adl et al., 2005, emend. Adl et al., 2012

Copeland, 1956, emend. Cavalier-Smith, 1997

Wallich, 1864

Dujardin, 1841

(Ehrenberg, 1841) Perty, 1849

Ehrenberg, 1841

Dujardin, 1841 (in part)

Perty, 1852 (in part)

Ehrenberg, 1871

Penard, 1902 (non Leidy, 1879)

Taránek, 1881 (in part)

Wailes and Penard, 1911

Playfair, 1918 (in part)

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Pateff (1924) and Golemansky et al. (2006) erroneously recorded the species (Rhodopes Mt., Vitosha Mt.), because the description of the found individuals fully corresponds to .

Penard, 1899

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006); Rila Mt. (Todorov 2004, new data).

Brown, 1911

Vejdovsky, 1882

Penard, 1890 (in part)

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, new data).

(Ehrenberg, 1848), Leidy, 1878

Ehrenberg, 1848

Perty, 1852 (in part)

Ehrenberg, 1871

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as infrasubspecific taxon Wailes, 1915 (Rhodopes Mt., Rila Mt.).

Carter, 1864

Hertwig and Lesser, 1874

Leidy, 1879 (in part)

Vejdovsky, 1882 (in part)

?

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as infrasubspecific taxon Wailes, 1915 (Rhodopes Mt.).

Wailes, 1912

Vitosha Mt. (Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995).

The species has been recorded as infrasubspecific taxon Wailes, 1912.

Leidy, 1874

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Brown, 1912

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Penard, 1890

Perty, 1852 (in part)

Leidy, 1879 (in part)

Taránek, 1881

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990,Todorov 1993, Todorov and Golemansky 1995, new data).

(Ehrenberg, 1845) Perty, 1849

Ehrenberg, 1845

Leidy, 1879 (in part)

Vejdovsky, 1882

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924,Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Wailes and Penard, 1911

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

(Ehrenberg, 1871) Leidy, 1878

Ehrenberg, 1871

Leidy, 1879 (in part)

Penard, 1890

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1928, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990,Todorov 1993, Todorov and Golemansky 1995, new data).

Besides the nominal species, two infrasubspecific taxa Wailes and Penard, 1911 (Rila Mt.) and Wailes and Penard, 1911 (Rhodopes Mt., Rila Mt., Vitosha Mt.) have also been recorded.

Dujardin, 1841

Ehrenberg, 1841

Dujardin, 1841 (in part)

Dujardin, 1841

Pritchard, 1861

Entz, 1877

Vejdovsky, 1882

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as synonym (Rhodopes Mt., Vitosha Mt.).

Hoogenraad and De Groot 1940, emend Adl et al. 2012

Dujardin, 1841

Penard, 1890

?

Leidy, 1879 (in part)

Pirin Mt. (new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Besides the nominal species, two infrasubspecific taxa (Decloître, 1950) Bonnet and Thomas, 1960 (Vitosha Mt.) and Chardez, 1959 (Rhodopes Mt., Vitosha Mt.) have also been recorded.

(Ehrenberg, 1838) Leidy, 1878

Ehrenberg, 1838 (in part)

Dujardin, 1841

Ehrenberg, 1844

Carter, 1857

Wallich, 1864

Crevier, 1870

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

(Penard, 1890) Jung, 1942

Penard, 1890

Rila Mt. (Golemansky and Todorov 1993).

(Chardez, 1960) Golemansky, 1963

Chardez, 1960

Rila Mt. (Golemansky and Todorov 1993, new data).

Penard, 1890

Ehrenberg, 1838 (in part)

Ehrenberg, 1841

Ehrenberg, 1854

Leidy, 1879 (in part)

forma

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Taranek, 1881

Bonnet and Thomas, 1960

Vitosha Mt. (Todorov 1993, Todorov and Golemansky 1995).

Taránek, 1881

Ehrenberg, 1841 (in part)

Ehrenberg, 1841 (in part)

Leidy, 1879 (in part)

Certes, 1889

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Besides the nominal species, two infrasubspecific taxa Decloître, 1950 (Vitosha Mt.) and Penard, 1910 (Vitosha Mt.) have also been recorded.

Thomas, 1961

Golemansky, 1966

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1966, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, Golemansky and Todorov 2006,new data).

Chatelain, Meisterfeld, Roussel-Delif and Lara, 2013

Schlumberger, 1845

Penard, 1890

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993,Todorov and Golemansky 1995, new data).

Schlumberger, 1845

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Deflandre, 1931

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

Jung, 1942

Stara Planina Mt. (new data); Vitosha Mt. (new data).

(Playfair, 1917) Deflandre, 1931

Playfair, 1917

Pirin Mt. (new data); Rila Mt. (new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Bonnet, 1979

(Penard, 1890) Bonnet, 1979

?

Penard, 1890

Awerintzew, 1907

?

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Lara et al., 2007

Leidy, 1879

Greeff, 1888

Leidy, 1879 (in part)

Penard, 1890

Pirin Mt. (new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

(Ehrenberg, 1848) Leidy, 1879

Ehrenberg, 1848

Ehrenberg, 1871

Leidy, 1874

Leidy, 1878

Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924, Golemansky and Todorov 1993, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1990, new data).

Leidy, 1879

Penard, 1906

Pirin Mt. (Golemansky 1974).

The species has been recorded as infrasubspecific taxon Decloître, 1955 (Pirin Mt.).

(Carter, 1865) Leidy, 1879

Carter, 1865

Rila Mt. (Golemansky and Todorov 1993).

de Saedeleer, 1934

Schlumberger, 1845

(Wailes and Penard, 1911)

Wailes and Penard, 1911

Pirin Mt. (new data); Rhodopes Mt. (Todorov et al. 2009); Rila Mt. (Heger et al. 2010, new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

(Ehrenberg, 1840) Leidy, 1878

Ehrenberg, 1840

Ehrenberg, 1841

Schlumberger, 1845

Perty, 1852

Schultze, 1854

Claparède and Lachmann, 1859

Wallich, 1864

Wallich, 1864

Ehrenberg, 1869

Ehrenberg, 1871

Ehrenberg, 1871

Ehrenberg, 1871

Ehrenberg, 1871

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Pateff 1924, Golemansky et al. 2006; Todorov et al. 2009, Heger et al. 2010); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2004, Todorov 2005, Todorov et al. 2009, new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, Todorov et al. 2009, Heger et al. 2010, new data).

(Penard, 1891)

Penard, 1891

Pirin Mt. (new data); Rila Mt. (Todorov et al. 2009, Heger et al. 2010, new data); Stara Planina Mt. (new data); Vitosha Mt. (new data).

Leidy, 1879

Penard, 1899

Awerintzew, 1906

Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, new data); Stara Planina Mt. (new data); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990, new data).

Penard, 1891

Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000); Vitosha Mt. (Golemansky 1965, Golemansky and Todorov 1990,Todorov 1993, Todorov and Golemansky 1995).

de Saedeller 1934, emend. Adl et al. 2012

Lauterborn, 1895

Lauterborn, 1895

Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov 2004).

Deflandre, 1928

Bonnet et Thomas, 1955

Pirin Mt. (new data); Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Todorov and Golemansky 2000, Todorov 2005, new data); Stara Planina Mt. (new data); Vitosha Mt. (Todorov 1993, Todorov and Golemansky 1995, new data).

(Moniez, 1888) Deflandre, 1928

Leidy, 1879 (in part)

Vejdovsky, 1882

Moniez, 1888

Penard, 1890

Pirin Mt. (Golemansky 1974, new data); Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000, Todorov 2005 new data); Stara Planina Mt. (new data); Vitosha Mt. (Pateff 1924, Golemansky 1965, Golemansky and Todorov 1985, Golemansky and Todorov 1990, Todorov 1993, Todorov and Golemansky 1995, new data).

The species has been recorded both as nominal species and as synonym (Vitosha Mt.).

de Saedeleer, 1934

Hertwig and Lesser, 1874

(Bailey, 1853)

Bailey, 1853

Leidy, 1879

Wailes, 1915

Rila Mt. (Pateff 1924).

The species has been recorded as synonym (Rila Mt.).

de Saedeleer, 1934

Schlumberger, 1845

Penard, 1902

Rhodopes Mt. (Golemansky 1968, Golemansky et al. 2006); Rila Mt. (Pateff 1924).

Schlumberger, 1845

Claparède and Lachmann, 1858

Mereschkovsky, 1879

Rhodopes Mt. (Golemansky et al. 2006); Rila Mt. (Golemansky and Todorov 1993, Todorov and Golemansky 2000).

Discussion

Prior to our investigation, the number of known -dwelling testate amoebae in Bulgaria was 155. Our study increases this number with 16 species and the present checklist comprises 171 species classified into 43 genera, 20 families, three orders, three classes and three phyla. We present data for 16 new -dwelling testate amoebae in Bulgaria and new distribution data for 134 species. Of them, 99 species are recorded from Stara Planina Mt., for which there was no available data to date. Additionally we report 69 new species for Pirin Mt., 21 for Vitosha Mt. and 18 for Rila Mt. Thirty six species have been synonymised according to the latest taxonomic changes. All known synonyms of valid names are also listed. The species Penard, 1902 and the infrasubspecific taxa Gauthier-Lièvre et Thomas, 1958 have erroneously been recorded, because the descriptions of the found individuals fully correspond to and , respectively. These misidentified taxa have been transferred to valid species. Three of the recorded species have not been included in the checklist, because they are currently not refering to testate amoebae ( and are naked amoebae and is freshwater foraminifera).

About 30% (51 species) of all recorded testate amoebae are typical sphagnicolous inhabitants, which only exceptionally can be found in other habitats. These are mostly the representatives of the genera (5 species), (5), (4), (4), (4), (4), (3) etc. The most numerous (67 species, 39%) are the species which are found in mosses but are also common inhabitants of freshwater basins. The genera (28), (7) and (6) have the largest number of representatives in this group. Most likely, some of these species are not usual inhabitants and fall incidentally into the mosses, which develop around the shores of freshwater basins (e.g. etc.). The relative share of species that are rather inhabitants of soils and soil mosses, but also occur in peatlands is comparatively smaller (about 18%, 31 species). Most of them rarely occur and usually have a low population density in mosses (e.g. etc.). The number of eurybiotic species, which are widely distributed in diverse habitats, including peatlands, is the smallest. Twenty one species (about 12% of all recorded) can be referred to eurybionts. Of these, the most frequently occurring in mosses are etc.

On a generic level, the genera (32), (17), (13), (10) and (8) have the greatest species richness. These five genera constitute about 47% of all testate amoebae recorded in mosses in Bulgaria. Of the other genera, 23 are represented with 2-5 species and 15 with one species only.

From families, the largest richness have (39 species, 4 genera), (26, 7), (17, 1), (13, 1) and (10, 1), which together make up two thirds of -dwelling testate amoebae in Bulgaria. Six families are represented by one species of one genus only (Microcoyciidae, Microchlamyidae, Netzeliidae, , and ).

At a higher taxonomic level, the most numerous is the order , which includes 128 species of 28 genera and 11 families, followed by the order Euglyphida with 42 species of 14 genera and 8 families and finally by the order Amphitremida with one species of 1 genus and 1 family only.

Checklist of -dwelling testate amoebae from Bulgaria_Distribution data

Data type: Distribution data

Brief description: Data for the distribution of testate amoebae in mosses in Bulgaria on the basis of literature and of additional data, obtained in our research over the past two years.

File: oo_193063.xlsx

Sampling sites information

Data type: Sampling sites data

Brief description: Data concerning sampling sites, including date, region, altitude, coordinates, moss species, as well as many physical and chemical parameters of the sampling sites.

File: oo_190421.xlsx