BANGS: LAND MAMMALS OF FLORIDA AND GEORGIA. 197 
Color. Adult, upper parts: usually dull yellowish drab (some 
specimens being nearly pale cinnamon, and others almost clear drab, 
with but few yellowish hairs intermixed), slightly darker along 
middle of back, but no marked dorsal stripe. Under parts, white, 
the hairs plumbeous at base (the under parts are whiter and less 
gray than the under parts of any other member of the g ossypinus 
series); tail not so sharply bicolored as that of P. gossypinus typi- 
cus , being dull gray above and white below; feet and hands white; 
ears dusky. 
Measurements. The type $ adult: total length, 168; tail ver¬ 
tebrae, 63; hind foot, 22; ear from notch, 17. Average of ten 
adult topotypes : total length, 168.7 ; tail vertebrae, 65.6 ; hind foot, 
21.9. Largest individual in above average, No. 6,426, 9 adult: 
total length, 178; tail vertebrae, 66; hind foot, 22. 
General remarks. Mr. Brown took a series of twenty-eight 
specimens of this island form at the north end of Cumberland 
Island, where he found them in the scrub palmetto and along the 
upper beach. The mouse was not common, however, and he 
worked very hard for what specimens he got. Mr. Brown also took 
two Peromyscus on Ossabaw Island, and these, though not fully 
adult, appear much like the Cumberland Island form. Cumberland 
and Ossabaw were the only islands upon which Mr. Brown found 
white-footed mice. P. insulanus is very different in color from 
any other mouse of the gossypinus series, even the young being 
easily separated from the young of P. gossypinus typicus , by the 
more drabby coloring of their upper parts and the absence of darker 
dorsal stripe. Its very white under parts and short tail will usually 
serve to distinguish it from any of the other forms. 
Peromyscus nuttalii (Harlan) } 
Arvicola nuttalii Harlan, Monthty Amer. jour. geol. and nat. 
sci., Pliila., April, 1832, p. 446. (Figured in Med. and phys. rec., 
1835, p. 55.) 
Mus ( Calomys ) aureolas Aud. and Bach., Jour. Acad. nat. sci., 
Phila., 1842, vol. 8, p. 302. 
1 Professor Baird was of opinion that Harlan’s name Arvicola nuttalii must be used 
for the golden mouse, and after a careful study of the question it seems to me that he 
was right, and that Audubon and Bachman’s appropriate name aureolus must lapse into 
synonomy. Harlan’s figure and description are none of the best, hut both are clearly 
meant for the golden mouse. It is now known that the range of this species includes the 
lower austral fauna of southern Virginia and therefore of Norfolk. 
