Y01 



NG. 



In. 



Lines. 



11 







14 







4 







4 







3 



(J 



3 



6 



3 



6 



3 







10 ZOOLOGY OF THE VOYAGE OF THE SULPHUR. 



back, outer side of the upper arms, and the legs, are washed with blackish. 

 The black on the hinder knee, the fore-arms and the hands, is as distinct as in 

 the adult, but the forehead is covered with yellowish hairs with intermixed black 

 ones, which form a small tuft on each side of the middle. The hairs on the lips 

 are longer and rather more abundant than in the adult. 



ADULT. 

 In. Lines. 



Length of the body and head 19 



of the tail 31 



of the upper arm 8 



of the fore arm 9 6 



ofthehand C 



of the thigh 7 G 



oftheleg 7 6 



ofthefoot 7 



The measurements being taken from stuffed specimens, with only a (e\v of 

 their bones remaining in them, are not much to be depended on. 



This " monkey, with its young, was shot by Captain Sir Edward Belcher, on 

 the shores of the harbour of Culebra, Leon." 



This species agrees in the distribution of the colours with A teles Geoff royii, 

 Kuhl, (Beytr. 26,) which has since been called A. melanochir by Desmarest, 

 (Mam. 76,) but the body of that species is said to be greyish sooty, and the hairs 

 of the back are described as blackish ash at the base with ashy ochraceous tips ; 

 while the hairs of the specimen before me are uniformly rufous brown from the 

 tip to the base in the adults, and yellowish brown in the young. Otherwise, as 

 the specimen described by M. Kuhl is intermediate in size between the two 

 brought home by the expedition, I might have been induced to have considered it 

 as a different age of this species. 



The genus JBrachy teles of Spix having been published several years before M. 

 Isidore Geoffroy's paper on Eriodes, I have felt it my duty to adopt the former 

 name. 



The white-headed Sapagou. — Cebus hypoleucus. 



Simia hypoleuca, Ilitmb., Rec. 337, 356? 



Cebus hypoleucus, Geoff., Ann. Mus. xix. 111. Kuhl, Beytr. 37. 



Sai a gorge blanche, Buffon, H. Nat. xv. t. 9. Audeb. Singes, v. 2. f. 5. 



Inhab. Tropical America. Capt. Sir Edward Belcher, C. B. 



