A new species of Sciadiocara Skrjabin, 1916 (Nematoda: Acuariidae) parasitic in shorebirds in Argentina.

In the present paper we describe a new species of the genus Sciadiocara from Haematopus palliatus from the Mar Chiquita coastal lagoon (37 degrees 46' S, 57 degrees 27' W), Argentina. We provide two host records (H. palliatus and Larus dominicanus) for the genus, both from Buenos Aires province, Argentina. S. haematopodi n. sp. closely resembles S. legendrei Petter, 1967. The new species can be distinguished by the morphology of the distal end of the left spicule, the shorter length of the right spicule, the number of pre-anal papillae and the ratio of the length of the vagina vera to the length of the vagina uterina.