364 BEADTPODlDiE. 



venient place would be the mother's back, with its long arms round 

 her neck, and legs round her waist." — H. Birchall, Zoologist, 1865, 

 p. 9517. 



1. Bradypos crinitus. B.M. 



Grey, sides reddish ; back of the neck with a mane formed of 

 elongate black hairs. 



Bradypus tridaotylus, lAnn. ; Owen, Odont. t. 81. f. 1, t. 82. 



Bradypus variegatus, Schinz. 



Bradypus torquatus, lUiger ; Owen, Odcmt. t. 81. f. 2 ; Rapp, Edent. 



p. 6. 

 Bradypus cristatus, Temm. 

 Bradypus crinitus, JBroum, Jam. p. 89 ; Gray, P. Z. S. 1849, p. 67, 



t. 10. f. 1. 

 Acheus torquatus, Oeoffr. 

 Bradypus cuculliger, Peters. 



Hob. Brazil. 



2. Bradypus afiBnis. B.M., type. 



Fur unknown; forehead of skuU rather convex, &o. — Qray,P.Z.S. 

 1849, p. 68, t. 10. f. 2. 



Bradypus affinis, Oray ; Turner, P. Z. S. 1851, p. 208. 

 Bradypus torquatus, Brandt, MS. 



Hah. Brazil. 



3. ARCTOPITHECUS. 



Hands and feet three-clawed. Skull rounded above on the fore- 

 head. Front grinders small. Pterygoid compressed, crest -like, 

 sohd. — Gray, I. e. t. 11. 



Osteology.— Gtslj, P. Z. S. 1849, p. 69 ; Turner, P. Z. S. 1851, 

 p. 208 ; Cuvier, Oss. Foss. v. t. 4, 5, 7. 



Aictopithecua, Gray, P. Z. 8. 1849, p. 69. 

 Acheus, part., F, Cwvier, Dents Mam. t. 78. 



a. Fur moderately rigid, the back white-spotted, dorsal streak elongate. 



1. Arctopithecus gularis. B.M. 



Dark grey-brown ; back white-varied, with an elongated black 

 streak with a broad patch of soft hair on each side between the 

 shoulders. Skull, &c. — Oray, I.e. t. 11. f. 6. 



Bradypus gularis, HUppell, Mm. Smck. iii. p. 138, t. 11 ; Gray, Cat. 



Mam. B. M. p. 193. 

 Bradypus cuculliger, Wagler ; Bapp, Fdent. p. 5, t. 3. f. 1 (skuU). 

 Arctopithecus gularis, Turner, P. Z. S. 1851, p. 208. 



Mab. South America ; Guiana (JRwppell) B.M. ; Bolivia {Bridges), 



2. Arctopithecus marmoratus. B.M., type. 



Grey-brown, back and outer side of the arms white-varied, with 

 an elongated narrow streak extending nearly the whole length of 



