116 CONILURUS. 
3. CoNILURUS BOWERI, Ramsay, sp. (1886). 
Bower's Jerboa-Rat. 
Ears small, with the tips rounded, and almost naked ; tail 
longer than the head and body. General color above light gray, pen- 
cilled with long black hairs; a broad, distinct, irregular, median 
band, rufescent on the nape and basal inch of the tail, golden- 
brown on the intervening portions ; next two inches of tail 
blackish, the rest white, terminating in a well defined brush ; 
under surfaces and feet white. 
Dimensions.—Head and body up to eleven inches ; tail to 
about thirteen inches. 
Habitat.—North-western Australia. 
Reference.—Ramsay, Proc. Linn. Soc. N.S. Wales (2) i. 1886, 
p. 1153, pl. xviii. 
Note.—This species is very closely allied to the preceding ; in 
fact, if it were not for the difference in the comparative dimen- 
sions of trunk to tail, I should have no hesitation in considering 
them identical. 
4, CONILURUS APICALIS, Gould, sp. (1851). 
White-tipped Jerboa-Rat. 
General color above pale brown, interspersed with numerous 
fine black hairs ; below white ; face and sides of neck bluish-gray ; 
flanks mixed gray and buffy-white ; fore feet white with a dark 
brown spot on the fore-arm, hind feet and tarsi white ; proximal 
three-fourths of the tail brown, the remaining portion thinly 
clothed with white hairs. 
Dimensions.—Head and body to eight inches ; tail to eight 
and a half inches. 
Habitat.—South Australia. 
Reference.—Gould, Mamm. Austr. iil. pl. i. 
Note.—This species has been found in a fossil state in the 
Pleistocene of New South Wales. 
5, CoNILURUS HEMILEUCURUS, Gray, sp. (1857). 
Hilsey’s Jerboa-Rat. 
Ears short ; tail shorter than the head and body; fur harsh 
and wiry. General color above light sandy-brown, with numerous 
scattered fine long black hairs ; below buffy-white, the feet, fore- 
arms, and tarsi even lighter; basal portion of the tail brown, 
deepening into black about the middle, beyond which it is white 
with a short apical tuft. 
