62 TAGASSU. 
Dicotyles G. Cuv., Réon. Anim, a, 1807, p-237. 
Notophorus Fisch., Mem. Soc. Imp. Nat. Moscow, v, 1817, p. 418. 
Adenonotus Brookes, Prodr. Syn. Anim., 11, 1828. 
Size large; mane not covering the rump; sides of rostrum not 
flattened, and divided by zygomatic ridge; palate long, narrow, with 
median ridge, and extending beyond last molar; deep cavity on root of 
zygoma anterior to orbit, which is small and incomplete behind, the 
postorbital process not joining the zygoma; pterygoid plates of the 
alisphenoid form the interpterygoid fossa. 
KEY TO THE SPECIES AND SUBSPECIES: 
A. Rostrum and nasals flattened anteriorly, con- 
vex posteriorly; sides of rostrum excavated 
over premolars; palate with sharp ridge from 
first premolar to canine. 
a. Stripe over shoulder. PAGE 
a.’ Size small; color grizzled black and buff...... T.nanus 62 
b.’ Size large. 
a.’’ Shoulder stripe white, sides black and 
WARIGE Sy ahd oo, eee T. angulatum 63 
b.”” Shoulder stripe yellowish ochraceous, 
narrow; sides dark, less gray........ T.a. humerale 63 
c.”” Shoulder stripe broad; sides whitish. T. a. yucatanense 63 
d.”” Shoulder stripe indistinct, very narrow; 
sidesiorizzledsaray, Oey y5- a eee T.a.crassum 64 
e.’’ Shoulder stripe indistinct; color mixed 
grayish and brownish black......... T.a.sonoriense 64 
f.’’ Shoulder stripe, wide and tawny .... T.crusnigrum 65 
A. Tagassu. 
46. nanus (Tayassu), Merr., Proc. Biol. Soc. Wash., xtv, 1gor, p. 
102. 
DwarF PEccaRy. 
Type locality. Island of Cozumel, Yucatan. 
Genl. Char. Small, similar to T. angulatum. 
Color. Above grizzled black and buff; broad buffy stripe on 
shoulders; rest of body with black dorsal stripe from occiput to tail; 
ears and feet black. 
Measurements. Total length, 840; tail vertebrae, 32; hind foot, 
175. Skull: basal length, 176; Hensel, 168; palatal length, 120; 
occipito-nasal length, 189; zygomatic breadth, 100; upper tooth 
TOW, 52. 
