58 CEBIDA. 
* Tail cylindrical, hair short. 
1. Nyctipithecus trivirgatus. Zhe Douroucouli. B.M. 
The black streaks on the crown distinct, linear ; frontal spot elon- 
gate, yellowish ; fur short ; throat and inside of limbs greyish ashy ; 
chest and belly ferruginous ; tail slender, cylindrical, blackish brown, 
yellowish brown at the under part at the base. 
Simia trivirgata, Humboldt. Nyctipithecus trivirgatus, Gray, Ann. 
and Mag. N. H. x. p. 256, 1842! N. Humboldtii, Schenz. N. 
Oseryi, I. Geoff. Cat. p. 2; Castelnau, Expéd. Amér, Sud, t. 2, £. 1. 
N. vociferans, Spix, Bras, t. 2, 1828. 
Hab. Peru. 
2. Nyctipithecus Commersonii. The Vitoe. B. M. 
Black facial streaks irregular and rather confused ; side ones linear; 
the middle one broad, lozenge-shaped ; frontal spots short, white ; fur 
rather long, thick; neck, chest, belly, and inner part of base of limbs 
and tail fulvous ; tail cylindrical. 
Nyctipithecus felinus, Spix, Bras. t. 18 (good), 1828; Is. Geoff. Cat. ; 
1 Gray. thn, 6 Meg iN HE 1842, a 356 | Chingelee Com- 
mersonii, Vigors and Horsfield, Zool, Journ. iv. p. 112, 1829! 
Callithrix infulatus, Licht.; Kuhl. Nocthora trivirgata, F. Cuv. 
Mamm. Lith. t. 
Hab. Brazil. 
** Tail depressed, broad ; hair of tail spreading on the sides like a squirrel. 
3. Nyctipithecus lemurinus. The Broad-tailed Vitoe. B.M. 
Head with a rounded white spot over each eye; frontal streaks 
indistinct ; fur of body and tail elongate; tail bushy. 
Nyctipithecus hirsutus, Gray, List Mamm. B. M. 1842! N. lemu- 
rinus, Is. es Mém. Ac. R. de U Institut, 1843, p. 178; Voy. Venus, 
Mamm. t.3.f.2. N, felinus, var., Gray, List Mamm. B. M. 1842 ! 
Hab. Columbia ; Santa Fé de Bogota. 
Tribe VI. PITHECINA. 
Grinders §.§. Lower cutting-teeth large, shelving forward, con- 
verging, separated from the canines by a space. Lower jaw not di- 
lated behind. Fur harsh, elongate. Claws bent. Nostrils far 
apart. 
9. PITHECIA. 
Chin with a broad beard. Crown with a radiated divided wig. 
Head and neck short. Tail long, covered with long hair. Canines 
strong. Septum of the nose broader than the cutting-teeth. Ears 
moderate. Gregarious, slow, sad, voracious, vociferous. 
