The genus Crenosoma (Nematoda: Metastrongyloidea) in New World mammals
Study of types and other specimens of Crenosoma from the lungs of carnivores indicates that there are only six known valid species in the New World, namely: C. vulpis (Dujardin 1844) Railliet 1915; C. potos Buckley 1930; C. petrowi Morozov 1939 (= ? C. schulzi Gagarin 1958); C. mephitidis Hobmaier 1941 (= C. microbursa Wallace 1941, C. zederi Goble 1942, C. canadensis Webster 1964); C. goblei Dougherty 1945; C. hermani Anderson 1962. C. petrowi is reported for the first time in the New World, in the fisher Martes pennanti Erxleben and the badger Taxidea taxus (Schreber). Sobolevingylus coloradoensis (Olsen 1952) n. comb. (= Crenosoma coloradoensis) is proposed. An illustrated key is provided for the separation of the various species.