A total of 235 vials of nematodes held in the Australian Helminthological Collection of the South Australian Museum from 125 individuals of were examined. The nematode assemblage of , comprising 12 families, including 16 genera and 23 identified species, was compared with the sympatric bandicoot species , 20 identified species (Sorensen's index of similarity 0.56) and , 12 identified species (Sorensen's index 0.51). n. sp. is distinguished from its congeners by having a synlophe with 7-8 ridges with the anterior ventral ridges interrupted, the morphology of the dorsal ray and the branching of the spicule tips. A single male specimen identified as sp. 1. is characterised by seven circles of body hooks, the oesophagus terminating at the level of the seventh circle and robust scale-like spines on the posterior ventral body. A complete description of the species will require additional material, including females. Difficulties in identifying individuals of the genus to species level are discussed. Overall similarities in the nematode assemblages of the three bandicoot hosts are likely due to shared relationships and similar behaviours.
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