ALOUATTA. 727 
sides bronze yellow brown. hairs tipped with black: lower part of 
sides brownish yellow; tail black; hands and feet black: under parts 
sparsely covered with brown hairs. The depth of the black or blackish 
brown general color, and the space covered by yellowish brown or 
fulvous on back and loins varies considerably. 
Fig. CXXXVIII. ALOUATTA PALLIATA. MANTLED Howter. 
Measurements. Total length, rr42; tail vertebre. 585; hind foot, 
145 (Skin). 
a. mexicana (Alouatta), Merr., Proc. Biol. Soc. Wash., 1902, p. 67. 
Mexican How ter. 
Type. locality. Minatitlan, State of Vera Cruz, Mexico. 
Geogr. Distr. Eastern Mexico. 
Genl. Char. Like A. palliata, but smaller: rostrum narrower; 
zygoma without the ‘“‘hump’’ on upper side posteriorly; coronoid 
process broadly rounded; teeth small. 
Color. Similar to A. palliata. 
Measurements. Total length, r190: tail vertebra, 651; hind foot, 
148. (Merr., ex Type.) 
b.—ecoibensis (Alouatta), Thomas, Novitat. ZOOl., IX, 1902, jek mi Reeh 
