Rat du Brézil, _Geoff._

_M. suprà fuscus fulvo lavatus; lateribus capitis corporisque æquè ac

abdomine auratis; gulâ pectoreque albis; pedibus pilis sordidè

flavis tectis; auribus parvulis; caudâ caput corpusque ferè æquante;

vellere longo, molli._

DESCRIPTION.—Head somewhat arched, and rather short; ears small; tail

about equal in length to the head and body, measured in a straight

line; tarsi large. Fur long, and rather soft; general colour deep

golden yellow: on the upper surface of the head and the back, long

glossy black hairs are thickly interspersed, and produce, with the

admixture of the deep golden colour of the ordinary fur, a dark

brown tint; chin, throat, chest, and rump, white; the hairs

covering the upper surface of the feet are of a dirty yellowish

white colour, and on the toes nearly white: ears densely clothed

with longish hairs, those on the inner side chiefly of a deep

golden colour, and those on the outer side brownish; the ears are

partially hidden by the long fur of the head; tail sparingly

clothed with hairs, above brown, and beneath brownish-white: the

fur of the back is of a deep gray colour at the base, annulated

with deep golden yellow near the apex, and blackish at the apex;

the longer hairs are black; the hairs of the belly are pale gray

at the base, and broadly tipped with golden yellow colour; the

white hairs on the throat, chest, and rump are of an uniform

colour—not tinted with gray at the root;—the hairs of the

moustaches are black: the incisors of the upper jaw are of a deep

orange colour, and those of the lower jaw are yellow: the thumb

nail is truncated.

In. Lines.

Length from nose to root of tail 8 6

of tail 7 9

from nose to ear 1 8

of tarsus 2 0

of ear 0 6½

The zoology of the voyage of H.M.S. Beagle [vol. 2 of 5] · 第 96 / 144 题