54 CEBID.E. 



This and C. iistus are larger species than C. sciureus. 



See also Simia sclurca cassiquerensis, Humholdt, Obs. Zool. ; 

 Saimiris lunuhttus, Is. Geoff. Ann. du Mus. iv. p. 18, with 

 a black lunule over each eye. Can this be a bad descrip- 

 tion for S. entomophagus ? 



7. CALLITHRIX. 



Tail covered with short hairs. Canines moderate. Septum of the 

 nose nearly as broad as the cutting-teeth. Ears large. Face and 

 orbits moderate. Eyes moderate, looking forward. Hair of orbit 

 normal. The spinous processes of the lumbar vertebrae acute, trian- 

 gular, nearly incumbent. Diurnal, gregarious, lively, agile, living 

 on fruit, insects, and birds' eggs. 



Callithrix, sp., Geoff. Saguinus, Less. 



I. The fur soft, with abundance of elongated stiffcr hairs. 



a. The hands and feet red. No. 1. 



b. The hands white, feet black. Nos. 2, 3. 



c. The hands and feet grey. Nos. 4-6. 



d. The hands and feet black. Nos. 7-9. 



II. The fur soft, curly, without any elongated stiffer hairs ; the 

 hands and feet whitish. Nos. 10, 11. 



I. Fur soft, with abundance of elongated stiffer hairs. 



a. Hands dark red bay ; hairs of tail grey, toith broad subterminal 



black band. 



1. Callithrix cuprea. The Red Teetee. B. M. 



Dark black-and-grey grizzled ; cheeks, throat, hands, feet, legs, and 

 underside of the body dark red bay ; tail like back, but rather darker ; 

 hairs of tail dark grey, with broad subterminal black band ; eyebrows 

 black. 



Callithrix cuprea, Spix, Bras. p. 23, 1. 17 (not well coloured). Calli- 

 thrix discolor, I. Geoff. Cat. p. 41 ; Arch, du Mus. v. p. 531, t. 28. 



Var. Tail white at the end. — Geoff. 



Hob. Brazil ; Ega, Bates. ' 



The figure given by Spix is very badly coloured, but the description 

 agrees well with the specimens. GeofFroy's figure is from a specimen 

 with tho end of the tail whito ; his figure is as much brighter than the 

 Museum specimen as Spix's is too sombre. 



b. The hatids white; the feet black ; tail black. 



2. Callithrix amictus. The White-chested Teetee. B. M. 



Black, reddish-washed j hairs black at the base ; chest with a pure- 

 white spot ; hands white ; feet black ; forehead and tail black ; hairs 

 of tail black to the base. 



