Abstract
ABSTRACT A new species of nematode, Chisholmia shimae sp. nov. (Heligmonellidae: Nippostrongylinae) is described from the duodenum of the coppery brush-tailed possum, Trichosurus vulpecula johnstonii (Ramsay), and the common brush-tailed possum, Trichosurus vulpecula vulpecula (Kerr), from the Atherton Tablelands, Queensland. It is distinguished from congeners, C. bainae and C. mawsonae, in possessing a smaller number of ridges in the synlophe (12–13), and longer spicules (0.52–0.68 mm) as well as a prominent gap in the distribution of ridges in the right-ventral quadrant of the synlophe. The species is unusual in that all related nippostrongyline nematodes are parasitic in rodents, with C. chisholmae being the first member of this sub-family described from a marsupial. Zoobank LSID of publication: urn:lsid:zoobank.org:pub:6214E2B6-59E9-4D2D-DAEF76E35796.
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