A survey of coccidian infection of freshwater fishes in South Africa, with the description of Goussia anopli n. sp. (Apicomplexa: Eimeriidae).

Seventy-seven specimens of seven freshwater fish species harvested in four sites from rivers and ponds of the Gauteng, North West and Limpopo Provinces (South Africa) were surveyed for coccidian infections. Two fish species were infected with apicomplexans belonging to Goussia Labbé, 1896. In banded tilapia Tilapia sparrmanii Smith unsporulated oöcysts of G. vanasi (Landsberg & Paperna, 1987) were found which became sporulated in tap-water within 24 hours. Another species in the gut of chubbyhead barb Barbus anoplus Weber harboured sporulated oöcysts in the faeces and in the intestinal epithelium. The latter species has been described as G. anopli n. sp.