MURIDZ.—-_MYOPOTAMUS. 183 
ce. Skeleton (imperfect). From the Zoological Society’s Collection. 
d. Skeleton. Vancouver’s Island. Presented by W. A. Mouat, Esq. 
é,g. Skulls. 
f. Skeleton. 
A. Skull. From Mr. Stevens’s sale-rooms. 
2, j. Skeletons: male and female. 
The Evropzan Beaver. Castor fiber. 
Pander und D’ Alton, Vergl. Osteol. pl. 2 (skeleton), pl. 8 g (skull).— 
Cuv., Oss. Foss. v. p. 10. pl. 1. fig. fb (teeth), pl. 3. tie 3-6 (young), 
1s. 8, 9 (adult skulls).— Owen, Odont. pl. 105. fig. 5 (teeth); Catal. 
steol. Ser. Roy. Coll. Surg. 1855.—Blasius, Faun. Wirb. Deutschl. 
p- 404, fig. 225 (dentition).— Blainv., Ost. Atl. G. Castor, pl. 1 (skele- 
ton), male. 
Castor gallie, F. Cuv., Dents des Mamm. p. 188. no. 71. p. 162. 
no. B, D. 43 (dentition). 
Castor europeeus, Brandt, Mém. Acad. St. Pétersh. vii. p. 63. taf. 1. 
fig. 1, taf. 2. fig. 1, taf. 3. figs. 1, 2 (skull). 
Castor, Buff., Hist. Nat. viii. p. 33. pl. 42 (skeleton). 
Cervical vertebree.............. v4 
OTSA oi hte s bs od geen ac cart doc et 14 
amber a evaces saeta gee sae 6 
PACH cin, fennel eae dea thdace ante 4 
Cand al vig dikdeaecn eeuac wie eens 27 
*qa. Skull: young. Hungary. Purchased of Mr. L. Parreyss. 
b. Skeleton. River Donau. Purchased of Mr. Brandt. 
ce. Skull (lower jaw wanting). 
MYOPOTAMUS. 
Teeth :—Incisors =; Molars $+; =20. 
The Corpv. Myopotamus coypus. 
Waterhouse, Nat. Hist. Mamm. ii. p. 297. pl. 14. tig. 2 (carpus and 
part of metacarpus), fig. 3 (tarsus and metatarsus), pl. 16. fig. 1 
a, 6, ¢ (skull).—F. Cuv., Dents des Mamm. p. 183. no. 72 (denti- 
tion), 1825.—Schreb., Saugth. pl. 239 z. fig. (dentition).—Blaine., 
Ost. G. Myopotamus, pl. (skeleton).—Brandt, Mém. Acad. St. 
Pétersb. vii. taf. 8. figs. 9-14 (skull). 
Cervical vertebre.............. 7 
Dorsal vases over enated 2g ve 14 
Dumber’: seaweed aes scretnccaasas 5 
DACLAL: pin hyde ina hae nee oa a 3 
Caudal ius). dca sae Races ioe 6 26 or 27 
a. Skull: adult. North America? 
*}, Skull: half-grown. North America. 
c. Bones of the body. Chili. 
