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, pi. 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. iii. pi. ii. 



Note. This species has been found in a fossil state in the 

 Pleistocene of New South Wales. 



5. CONILURUS HEMILEUCURUS, Gray, sp. (1857). 

 Elsey'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. 



