20 CHOLOEPUS. 
Two digits with strong claws on hand, three toes on foot; anterior 
teeth in both jaws large, separated from the others by a diastema, 
the upper teeth passing in front of the lower when the jaws are 
closed; cervical vertebrae, six; pterygoid swollen. 
Fig. 4. CHOLOEPUS HOFFMANNI. 
No 112 Field Columbian Mus, Coll. % nat. size. 
16. hoffmanni (Choloepus), Peters, Monatsb. K. Preuss. Ak. Wiss. 
Berlin, 1858, p. 128: 
HOFFMANN’S SLotH. Perico Lajero in Costa Rica. 
Type locality. Costa Rica. 
Geogr. Distr. Costa Rica, Central America. 
Genl. Char. Those of the genus. 
Color. Face and top of head yellowish white, grading into 
vellowish brown on the body above; arms and legs dark brown; 
under parts pale brown. 
