246 
SO REX DEKAYI.-Bach. 
DeKay’s Shrew. 
PLATE CL. Fig. 2. — Young Male. — N atural Size. 
Magnitudine Arvicol® Pennsylvanicas ; colore supra ferrugineo, ex 
cinereo et flavo variegato, infra cinereo ; cauda brevi atque cylindracea. 
CHARACTERS. 
Size of Arvicola Pennsylvanica ; rusty yellow gray colour above, cinereous 
beneath ; tail, short and cylindrical. 
SYNONYMES. 
Sorex DeKayi. Bachman, Jour. Acad. Nat. Sci., vol. vii., part 2, p. 3 77, pi. 23, fig. 4. 
“ DeKay, Nat. Hist, of New York, p. 17, pi. 5 , fig. 2. 
DESCRIPTION. 
Dental Formula. — Incisive \ ; Canine ; Molar ^ = 32. 
The two upper incisors are much curved, and pointed at tips ; the lateral 
incisors are each crowned with two tubercles except the fifth, which is 
smooth ; each grinder, on the upper surface, is furnished with four sharp 
points ; in the lower jaiv the incisors are also much curved ; the first 
canine tooth is smaller than the second, and the molars are similar to those 
of the upper jaw. The body bears a resemblance to that of the shrew mole 
in shape. Head, rather short ; nose, distinctly bilobate ; nostrils, on the 
sides ; the eye is a mere speck ; there are no external ears ; whiskers, the 
length of the head ; the feet are more robust than those of any American 
Shrew we have examined, and are haired on the soles ; feet, clothed with 
short fine hairs ; the tail in the dry specimen is square, examined in the 
flesh is rounded, slightly dilated in the middle, and covered with short 
hair ; hind-foot, three middle nails nearly equal, outer toe a little longer 
than the inner, which latter is the shortest. 
COLOUR. 
Nose, feet, and nails, reddish-brown ; upper surface of body, rusty yellow 
gray ; a shade lighter on the under surface ; whiskers, for half the length 
from their roots cinereous, whitish at the tips ; incisors, black. 
