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PEROGNATHUS PENICILLATUS Woodhouse. 
Tuft-tailed Pouched Rat. 
CHARACTERS. 
Above yellowish brown , beneath white j tail longer than the head and body, 
penicillate, with bright brown hair. 
SYNONYME. 
Perognathus Penicillatus. — Woodhouse, Proc. Acad. Nat. Sciences, Phil., Dec., 
1852, p. 200. 
DESCRIPTION. 
Head of moderate size, not easily distinguished from the neck ; incisors 
small and partially exposed, upper ones sulcate in the middle. Nose 
small and rather pointed, extending some distance beyond the incisors ; 
whiskers light brown, irregularly mixed with black ; eyes dark brown, 
and of moderate size ; ears nearly round and moderate, almost naked ante- 
riorly, and covered posteriorly with line brown fur ; the tragus and anti- 
tragus are quite prominent. The external meatus is protected by a tuft 
of short, black bristles extending across the ear. Tail about one inch 
and a quarter longer than the head and body, round, gradually tapering, 
and covered with hair ; on the superior and middle portion commences a 
row of long, silky hairs, which gradually increase in width until they form 
a tuft at the end. Fore legs short, feet small, with four well developed 
toes and a short thumb, which is armed with a nail ; palms naked. Hind 
legs and feet long, having five toes, terminated by nails. Feet and toes 
covered with fine short fur ; soles naked. The fur longer on the back 
than on the belly ; it is thick, soft, and silky. 
COLOUR. 
Incisors yellow, top of head and back dark yellowish brown, lighter on 
the sides ; fur at base light ash colour. Throat, belly, vent, fore legs, and 
inner portions of thighs white. The white commences at the nostrils, and 
forms a well marked line to the thighs, and extending down to the heel, 
