CONICET | Buscador de Institutos y Recursos Humanos

Huffmanela moraveci n. sp. (Nematode: Trichosomoididae) is described from the gills and skin of the silverside Odontesthes smitti (Atheriniformes) on the basis of the morphology of adults and eggs in the host tissues. Huffmanela moraveci n. sp. can be distinguished from Huffmanela carcharini, H. banningi, H. japonica, H mexicana, H. paronai, H. schouteni, H shikokuensis, H. branchialis, H. filamentosa, H. ossicola and H. lata by the size and shape of the eggs. The adult stage of H. moraveci n. sp. can be differentiated from H. huffmani and H. canadensis by the position of the nerve ring and vulva and, the ratio of total esophagus length/total body length. Also H. moraveci n. sp. differs from H. huffmani by the presence of bacillary bands and by the total body length. This is the first report of the genus Huffmanela in South America and from Odontesthes spp.