MUS. 109 



Dimensions. Slightly larger than Mus musculus. 



Habitat. West Australia. 



References. Gould, Marnm. Austr. iii. pi. xxi. 



Note, Gould remarks : " This pretty little Mouse inhabits 

 the sandy districts bordering the sea-shore, particularly those 

 at the back of the sand-hills to the northward of Freemantle." 



15. Mus NOV^;-HOLLANDI^E, Waterhouse (1842). 

 Common Field Mouse. 



Tail not nearly so long as the head and body. Tarsi rather 

 long and slender ; fur rather long and very soft. General color 

 above deep gray, tipped with brownish-yellow ; below less deep 

 gray, tipped with white ; tail dusky above, white below. 



Dimensions. Head and body to three inches; tail to two inches. 



Habitat. New South Wales. 



References. Waterh., Proc. Zool. Soc. 1842, p. 146; Gould, 

 Mamm. Austr. iii. pi. xxii. 



16. Mus DELICATULUS, Gould (1842). 



Pigmy Mouse. 



Ears small ; tarsi delicate ; tail slender, nearly as long as the 

 head and body ; fur soft and short. General color above pale 

 yellowish-brown ; sides delicate yellow ; lower part of the sides 

 of the muzzle, entire under surfaces, and feet, white ; fur of 

 uniform color on the throat and mesial line of the abdomen. 



Dimensions. Head and body to two and a half inches ; tail to 

 two and a fourth inches. 



Habitat. Port Essington. 



Reference. Gould, Mamm. Austr. iii. pi. xxiii. 



17. Mus TOMPSONI, Ramsay (1881). 



Tompson's Rat. 



Tail longer than the head and body ; fur above rather harsh, 

 .below soft. General color above light gray, with a fulvescent 

 tinge, pencilled with black ; whiskers long and black, some near 

 the angle of the mouth white ; lower surfaces pure white ; hands 

 rather small, gray above ; feet and claws white ; tail blackish, 

 the hairs very short. 



Dimensions. Head and body to six and two-thirds inches; tail 

 to seven and a half inches. 



Habitat. Interior of New South Wales. 



Reference. Ramsay, Proc. Zool. Soc. N.S. Wales, vi. p. 763, 

 figs. 1 (pinna), 2 (under surface of hand) and 3 (ditto of foot). 



