New species of parasitic nematodes from macropodid marsupials in Western Australia

Abstract

Two new species of parasitic nematodes are described from macropodid marsupials from Western Australia. Rugopharynx setonicis sp. nov. from the stomach of the quokka, Setonix brachyurus, belongs to the Rugopharynx australis complex, but differs from related species in the anterior position of the nerve ring, a shorter spicule length and the anterior position of the deirids. A second new species, from the oesophagus of Macropus irma, is described. Cyclostrongylus irma sp. nov. is distinguished from congeners by a buccal capsule which is wider near its anterior extremity, longer spicules and a short oesophagus. The descriptions of the two new species provide additional evidence in support of c..