BRADYPUS. 23 
Genl. Char. Fur long; dorsal patch large; angle of mandible 
broad, rounded terminally, and projecting greatly beyond condyle. 
Color. ‘“‘Fur gray brown, intermixed with white hairs. Face, 
forehead, cheeks, and chin reddish brown; the under part of the body 
is pale brownish white; the sides of the neck have a long ruff of recurved 
dark brown hair darker than that of the face. The shoulders and 
hinder part of back are varied with large patches of whitish hair. 
Fic. VIl. BRADYPUS CASTANEICEPS. CHESTNUT-HEADED SLOTH. 
The middle of the back between the shoulders has a very large patch 
of soft yellow hair, with a well-marked, narrow, black central streak, 
which commences with a triangular black spot on the upper edge 
of the yellow patch, and is continued into the white part of the fur 
on the loins.”’ (Gray,1.c.) It is stated that when alive this sloth 
is a grayish green color. 
Measurements. Total length, 525; tail, 25. (ex Type, Brit. Mus. 
Oldfield Thomas in litt.) 
18. infuscatus (Bradypus), Wagl., Isis, 1831, Peonn: 
griseus, Gray,*Proc. Zodl. Soc., 1871, p. 446. 
