Oxyuroids of palearctic Testudinidae: New definition of the genus ThapariaOrtlepp, 1933 (Nematoda : Pharyngodonidae), redescription of Thaparia thapari thapari, and descriptions of two new species

The generic diagnosis of Thaparia Ortlepp, 1933, is emended based on the st udy and redescription of Thaparia thapari thapari (Dubinina, 1949) from the cecum of Testudo graeca Linnaeus, 1758, collected in Settat, Morocco. In a ddition, 2 new species, Thaparia carlosfeliui sp. n. and Thaparia bourgati sp. n. from the cecum of Testudo hermanni Gmelin, 1789, collected in Catalo nia, Spain, are described. Scanning electron microscopy studies revealed su bstantial differences in the structure of the mouth and the caudal end, whi ch enabled us to differentiate the 2 new species from the others and from e ach other.