DASYPIDA!,— ARCTOPITHECUS. 291 
ARCTOPITHECUS. 
Tecth :—Incisors "7; Canines ©? ; Molars <3; =18. 
Arctopithecus gularis. 
Gray, Proc. Zool. Soc, 1849, p. 70. pl. 11. fig. 6 Tomer jaw). 
Bradypus tridactylus, var., Cuv., Oss. Foss. v. tab. ase 1-3. ne Cuv., 
Rég. An, lust. tab. 70. fig. 1a.—Owen, Odont. pl. 81. fle. (den- 
tition). 
Cervical vertebre.............. 9 
MOSEL, acc aensvcchrennarentoaeecacedscd ora 15 
Tea War 9 sac pecioh avacs oro se raterdic dunce 3 
Baral so cca doncmntacalan meses aes auen 7 
Caudal ec ccccacksauin saa enacts 8 or 9 
*a, Skull. Bolivia. From Mr. Bridges’ Collection. 
b. Skeleton: young. 
Arctopithecus marmoratus. 
Gray, Proc. Zool. Soc, 1849, p. 71, pl. 11. fig. 8 (lower jaw, adult), 
fig. 4 (half-grown), 
Bradypus tridactylus guianensis, Blainv., Ostéog. G. Bradypus, tab. 8 
(Galeell), Sore, Cephalog. tab. 7. fig. 12 (skull). 
Bradypus cuculliger, Rapp, Edentaten, taf. 3. fig. 1 (skull). 
a. Skull: adult. 
%, Skulls, balf-erown. } 8. America. From Mr. Stevens’s sale. 
Arctopithecus flaccidus. 
Gray, Proc, Zool. Soc. 1849, p.72. pl. 11. fig. 1 (adult), fig. La (young 
skull). 
*a, Skull. Venezuela. From Mr. Dyson’s Collection. 
6. Skull. Para. Presented by J. P. G. Smith, Esq. 
Arctopithecus blainvillii. 
Gray, Proc. Zool. Soc. 1849, p. 71. pl. 11. fig. 2 eek 
Bradypus tridactylus, Cuv., Oss. Foss. v. pl. 4 (skeleton), pl. 5 (skull). 
Bradypus tridactylus brasiliensis, Biainv., Ostéog. tab. 2 (skeleton), 
tab. 3 (skull). 
Cervical vertebre.............. 9 
‘Dorsal te were ner eos ean eee 16 
ERIM Dar” adecaraaunain oko a Mena ets 4 
ACTA! cas ieres are aaron eos ath tmaoetts 6 
CRUG sicia ese v se tg las leet @-aeionelec 11 
a. Skeleton. Brazils. From Mr. Becker’s Collection. 
b,c. Skulls. §S. America. Presented by the Zoological Society. 
d. Skeleton. Guiana. From Mr. Brandt’s Collection. 
?¢. Skeleton: very young. From the Zoological Society's Col- 
lection. 
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