196 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
General characters. Size rather smaller than, but with the pro¬ 
portions of, P. gossypinus typicus , from which it differs in being 
much paler and more buffy in color. 
Color. Adult, upper parts: buff clearest along lower sides, on 
cheeks, inside of flanks and base of tail, darkened along middle 
back into a dorsal stripe of about hair brown, with usually some 
buffy hairs intermixed; under parts grayish white, the hairs plumbe¬ 
ous basally; tail bicolored, dusky above, white below; feet and 
hands white ; ears dusky. 
Measurements. - The type 9 adult: total length, 165; tail ver¬ 
tebrae, 69.5; hind foot, 21 ; ear from notch, 16.5. Average of 
six adult topotypes: total length, 167.5; tail vertebrae, 69.5; hind 
foot, 21.4. Largest individual in above average, No. 7,180, 9 
adult: total length, 178; tail vertebrae, 75.5; hind foot, 20.5. 
General remarks. I found this mouse living on the open sand 
hills of Anastasia Island, whefe it was not common, and was greatly 
outnumbered by P. phasma (described below). I caught only 
nine individuals; most of these were taken in thickets of bayberry 
bushes and Spanish bayonet that grow in the more sheltered places 
among the sand hills, but two were caught where there was no 
more cover for long distances than that afforded by the loose tufts 
of sea oats. 
P. anastasae is an island form peculiar to Anastasia Island. 
I took P. gossypinus typicus on Matanzas Point only separated by a 
couple of hundred yards of turbulent water, where the tide runs 
like a mill-race, from Anastasia Island, and at Carterville on the 
main land opposite Anastasia Island. P. anastasae is easily dis¬ 
tinguished from true P. gossypinus by its paler buffy coloring in 
with its sandy environment. 
Pekomyscus insulanus sp. nov. 
Type from north end of Cumberland Island, Georgia, $ adult 
No. 6,438, collection of E. A. and O. Bangs. Collected, April 10, 
1897, by W. W. Brown, Jr. 
General characters. Size rather small (for a member of the 
gossypinus series); tail short; hind foot proportionately large; 
color of upper parts drab or yellowish drab; no marked dorsal 
stripe; under parts purer white than in others of the gossypinus 
series; young, in second pelage, much lighter gray than the cor¬ 
responding pelage of other forms. 
beautiful harmony 
