Leporillus conditor (Sturt, 1848) . Narr. Exped. C. Aust., 1:120.

TYPE LOCALITY: Australia, New South Wales, Polia area, about 45 miles from Laidley Ponds .

DISTRIBUTION: Australia; once ranged on mainland from lower Darling River to Nullarbor Plain in New South Wales, South Australia, and SE corner of Western Australia, and presumed to be extinct; living population on Franklin Isl in the Nuyt's Archipelago of W South Australia (Mahoney and Richardson, 1988: 160; Watts and Aslin, 1981: 147).

STATUS: CITES - Appendix I; U.S. ESA - Endangered; IUCN - Rare.

SYNONYMS: jonesi .

COMMENTS: Phylogenetic significance of spermatozoal morphology reported by Breed and Sarafis (1978); chromosomal morphology described by Baverstock et al. (1977c). Electrophoretic data indicated L. conditor is phylogenetically closely allied to Pseudomys (Baverstock et al., 1981), but information from analyses of phallic and dental morphology placed L. conditor in same monophyletic group as Conilurus and Mesembriomys, to the exclusion of Pseudomys (Lidicker and Brylski, 1987; Misonne, 1969), which is also supported by albumin data (Watts et al., 1992).