CONILURUS. 119 
ochraceous-yellow with a considerable admixture of black ; below 
butfy-white, as also are the hands and feet ; tail moderately 
clothed, above mixed black and white, below pure white. 
Dimensions.—Head and body up to five and a half inches ; 
tail to three and three-fourths inches. 
Habitat.—Interior of New South Wales and South Australia. 
Reference.—Gould, Mamm. Austr. iii. pl. vii. 
11. ConILuRUS LONGICAUDATUS, Gould, sp. (1844). 
Long-tailed Jerboa-Rat. 
Ears large and naked. Tail much longer than the head and 
body ; fur close and very soft. General color above pale sandy, 
intermixed with numerous fine black hairs, which are longest 
posteriorly ; below white ; ears dark brown ; feet and tarsi 
white ; basal half of the tail clothed with short dark brown hairs, 
apical half with longer black hairs tipped with white, the extreme 
tip white. 
Dimensions.—Head and body up to seven inches; tail to nine 
inches. 
Habitat.—Interior of Western Australia. 
Feferences.—Gould, Mamm. Austr. iii. pl. viii. 
Note.—Gould on the authority of Gilbert states that ‘the 
favorite haunt of this species is a stiff and clayey soil. It is 
also very partial to the mounds thrown up by SBettongia grayr 
(B. lesueurt of this work) and Peragale lagotis. It is less des- 
tructive to the sacks and bags of the storerooms, but, like 
H, mitchellt, is extremely fond of raisins.” 
12. CoNILURUS MITCHELLI, Ogilby, sp. (1838). 
Mitchell’s Jerboa-Rat. 
Ears moderate, naked, and somewhat pointed ; tail longer than 
the head and body ; fur close and very soft. General color above 
very pale sandy, intermixed with fine black hairs which are 
longest posteriorly ; sides of face, under surface, inner side of the 
limbs, and the feet grayish-white ; a broad patch down the middle 
of the throat and chest pure silky white ; ears dark brown ; upper 
surface of the tail dark brown, and crested towards the tip ; 
lower surface white. 
Dimensions.—Head and body up to four and three-fourths 
inches ; tail to six inches. 
Habitat.—South and West Australia. 
