Cloacina celata n. sp. and a new record of C. io Beveridge, 1998 (Nematoda: Strongyloidea) parasitic in the black-striped wallaby, Notamacropus dorsalis (Gray) from Queensland

Abstract

Cloacina celata n. sp. (Nematoda: Strongyloidea) is described from the stomach of the black-striped wallaby, Notamacropus dorsalis (Gray) from Queensland. It differs from congeners in possessing bosses lining the anterior region of the oesophagus, a dorsal oesophageal denticle, an inflated cervical cuticle and the excretory pore opening posterior to the oesophageal junction. Cloacina io Beveridge, 1998 is reported for the first time from the same host species. Both species appear to be uncommon and occur at low intensities. The technical obstacles to finding and describing such uncommon species are discussed.