38 HYPSIPRYMNODON. 
References.—Thomas, B. M. Catal. p. 132; Gould, Mamm. 
Austr. i. pl. v. 
Family V.—MACROPODIDAS. 
Progression generally saltatorial. Hind limbs much the longer. 
Fore feet with fire digits ; hind feet syndactylous, the fourth toe 
very large with a strong claw; the fifth similar but smaller; the 
second and third slender and united. Stomach sacculated. Coecum 
present. Pouch large, opening forwards. 
Subfamily [.—HypsipRyMNoDONTINa!. 
Size very small. Claws small, feeble, and subequal. Hallux 
present, opposable. Tail naked and scaly. 
Genus I.— HY PSIPRYMNODON, Ramsay (1876). 
Form rat-like. Rhinarium wholly naked. Ears large, thin, 
and naked. Limbs subequal, not saltatorial. Hind feet with a 
long opposable clawless hallux ; fourth toe not disproportionately 
larger than the others, the fifth and combined second and third 
toes all well developed. Tail cylindrical, tapering, only the 
extreme base hairy. 
Dentition. —I. +73, C. 5, P. foep M. 755 x 2=34. 
Habits.—Terrestrial, and at least partially arboreal ; insecti- 
vorous, frugivorous, and rhizophagous. 
1. HypstPRYMNODON MoscHATUS, Ramsay (1876). 
Australian Musk Rat. 
Fur close, crisp, and velvety. Ears rounded, naked except at 
their bases behind, blackish flesh-color. General color above and 
below finely grizzled rusty orange-gray, the orange deepest on the 
back. Fingers naked and scaly; palms with five large transversely 
ridged pads ; upper surface of fourth toe only hairy ; soles with 
five transversely striated pads. Tail naked except on the proxi- 
mal inch, scaly, black above, paler below. 
Dimensions.—Head and body about ten inches; tail about 
six and a half inches. 
Habitat.—Herbert River District, Queensland. 
Type.—In the Australian Museum, Sydney. 
References.—Thomas, B.M. Catal. p. 123, pls. xiv. fig. 11 (fourth 
premolar), xv. fig. 1 (hind foot); Ramsay, P.L.S. N.S.W. 1. p. 34. 
