387 
PSEUDOSTOMA BULBIVORUM.-Rich 
SYNONYMES. 
Diplostoma ? Bulbivorum.— Rich, Fauna Boreali Americana, p. 206. 
Diplostoma (Geomys) Bulbivoros.— Rich, Zoology of Beechey’s Voyage, p. 1 3. 
Geomys Bulbivorus.— Dr. Le Conte, Proc. Acad. Nat. Sci., Phila., 18.52°p. 162. ' 
DESCRIPTION. 
Body like that of a great mole ; furnished with cheek-pouches, each 
pouch has a semi-cup-shaped cavity when distended ; whiskers very short, 
eyes small. The auditory openings are moderately large, hut there are no 
external ears. Tail short, round, and tapering, with an obtuse tip, and 
thinly clothed with hair. The legs are short, and are covered down to 
the wrist and ankle joints with fur similar to that of the body ; there are 
five toes on each foot ; the hind nails are short, conical, obtuse', and more 
or less excavated underneath. The nail of the fourth toe is more spoon- 
shaped than the others. 
COLOUR. 
Incisors yellowish ; on the dorsal aspect the fur has a colour interme- 
diate between chestnut and yellowish brown, darker on the crown of the 
head than elsewhere ; on the belly the brown is mixed with a considerable 
Portion of grey. The lips, the lower jaw, the lining of the pouches, and 
a narrow space around the arms, are covered with white fur. 
Close to the upper part of each side of the mouth there is a rhomboidal 
mark, which is clothed with hair of a liver brown colour. 
The hind-feet are covered above with whitish hairs. 
DIMENSIONS. 
Inches. 
Length of head and body, 
“ of head, 3 
Breadth of head behind the eyes, when the pouches 
are distended, 3 
Length of tail, 2 
“ of upper incisors (the exposed portion), 
“ of lower incisors, 
vol. in. — 43 
Lines, 
6 
6 
6 
9 
