MUS. 109 
Dimensions.—Slightly larger than Mus musculus. 
Habitat.—West Australia. | 
References.—Gould, Mamm. Austr. iii. pl. 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 Nov4&-HOLLANDI#, 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. pl. xxii. 
16. Mus pDELicatuuus, 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. pl. xxiii. 
17. Mus tompsoni, Ramsay (1881). 
Tompson’s Rat. . 
Tail longer than the head and body ; fur above rather harsh, 
below soft. Genera) 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 (wnder surface of hand) and 3 (ditto of foot). 
