64 CEBIDE. 
Var. 6, Head and neck black, like var. 3; but no white spot on 
the nose. Young without any ear-tufts. 
The young animals are nearly black, without any pencil to the 
ears, and with the tail ringed. The young J. peniecillatus has no 
white spot on the nose. 
See Jacchus chrysopygus, Natterer ; Mikan, Del. Flor. et Faun. t. 
Black ; rump and inner side of thighs golden ; forehead lurid 
yellow ; mane descending below the humerus, Hab. Brazil. 
14. CEBUELLA. 
Ears small, short, slightly hairy externally, hid in the elongated 
reversed hair of the crown; no ear-tufts. Tail darker-ringed. 
Back punctulated. Lower cutting-teeth elongate, cylindrical, as 
long as the canines. 
Jacchus, § Cebuella, Gray, P. Z. S. 1866. 
Cebuella pygmza. B. M. 
Fur ferruginous yellow, black- and red-varied ; neck, chest, 
belly, and inside of the limbs yellowish; hands and feet yellow 
brown. 
Hapale pygmea, Spir, Bras. p. 82, t. 24. f. 2; Is. Geoff. ; Castelnau, 
hapéd. Amér. Sud, t. 5. f.1,2, H. (Cebuella) pygmea, Gray, 
P. Z. 8, 1866. 
Hab. Brazil. 
15. MICO. 
Ears large, exposed, naked externally, and internally without any 
pencil of hairs. Tail black, not annulated. Lower cutting-teeth 
elongate, slender, cylindrical, as long as the canines. 
Mico (part.), Lesson. Jacchus, § Mico, Gray, P. Z. 8. 1866, 
Mico melanurus. B. M. 
Fur ashy brown; head and limbs dark brown; front of body 
paler; front of thighs and band across loins whitish ; tail black. 
Jacchus melanurus, Geoff. J. leucomeros, Gray, Ann. & Mag. N. H. 
1846! J. eae melanurus, Gray, P. Z. S. 1866! Hapale melanura, 
Wagner, Schreb. v. p. 15. 
Albino. Body, head, and limbs white ; tail black. BLM. 
Mico, Buffon, H. N. Simia argentata, Zinn. Jacchus argentatus, 
Geoff. Fair Monkey, Pennant. Cebuscanus, Bluinv. Ostéogr. 
Hab. Brazil; Bolivia, Bridges. 
"* Lower cutting-teeth short, truncated ; lower canines conical, exserted. 
16. LEONTOPITHECUS. 
Head covered with elongate hairs, those round the face bent back- 
