title: A new genus and species of Heligmonellidae (Nematoda: Trichostrongylina) parasitic in Delomys dorsalis (Rodentia: Sigmodontinae) from Misiones, Argentina.
abstract: Alippistrongylus bicaudatus gen. et sp. n. (Nematoda: Heligmonellidae) is described from the striped Atlantic forest rat, Delomys dorsalis (Hensel) (Rodentia: Sigmodontinae), from the province of Misiones in Argentina. The new genus and species is characterised by a synlophe of 21 unequal ridges in both sexes without a gradient in size, with two ridges weakly sclerotised and oriented perpendicularly in the dorsal left quadrant; males with a highly dissymmetrical bursa with a hypertrophied right lobe, and females with a dorsal conical appendage just posterior to the vulva, conferring a two-tailed appearance to the female worms.
authors.affiliation: CONCICET-Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina. mdigiani@fcnym.unlp.edu.ar
authors.forename: María Celina
authors.initials: MC
authors.lastname: Digiani
authors.forename: John M
authors.initials: JM
authors.lastname: Kinsella
mesh_terms: D000818:Animals; D001118:Argentina / Q000453:epidemiology; D005260:Female; D008297:Male; D009348:Nematoda / Q000145:classification* / Q000648:ultrastructure*; D009349:Nematode Infections / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*; D012376:Rodent Diseases / Q000453:epidemiology / Q000469:parasitology*; D016205:Sigmodontinae; D013045:Species Specificity