28 CETACEA. 



M. 1296-99. Casts of two specimens of the sixth cervical vertebra. 



M. 1300. Cast of the first dorsal vertebra, wanting the neural arch ; 

 pi. xxxiv. fig. 5. 



M. 1326. Cast of the third dorsal vertebra, wanting one epiphysis 

 and with the neural arch incomplete ; pi. xxxv. figs. 1, 2. 



M. 1304. Cast of an early dorsal vertebra ; pi. xxxvi. fig. 1. De- 

 scribed as the fifth dorsal, but very different from the next 

 specimen. 



M. 1320. Cast of the centrum and part of the arch of the fifth 

 dorsal vertebra ; pi. xxvii. figs. 4, 5. 



M. 1301. Cast of the centrum of the seventh dorsal vertebra ; 

 pi. xxxvi. figs. 2, 3. 



M. 1320 a. Cast of a smaller seventh 'dorsal vertebra, wanting one 

 epiphysis ; pi. xxxvii. figs. 1, 2. 



M. 1302. Cast of the centrum of the tenth dorsal vertebra ; pi. xxxvi. 

 fig. 4. 



M. 1321. Cast of the thirteenth dorsal vertebra, wanting both 

 epiphyses and one transverse process ; the centrum and 

 transverse process are figured, pi. xxxv. figs. 3, 4. 



M. 1303. Cast of the centrum of the fifth lumbar vertebra ; 

 pi. xxxvi. fig. 5. 



]VL- 1318. Cast of the eleventh lumbar vertebra, wanting both epi- 

 physes and transverse processes ; pi. xxxvi ii. figs, 1, 2. 



M. 1316. Cast of the fifth caudal vertebra, wanting one transverse 

 process ; pi. xxxviii. figs. 3, 4. 



M. 1315. Cast of the slightly imperfect ninth caudal vertebra ; 

 pi. xxxix. fig. 3. 



M. 1305. Cast of the slightly imperfect fourteenth caudal vertebra ; 

 pi. xxxix. figs. 1, 2. 



M. 1307. Cast of the imperfect eighteenth caudal vertebra ; 

 pi. xxxviii. figs. 5, 6. 



M. 1317. Cast of the twentieth caudal vertebra ; pi. xxxix. fig. 4. 



M. 1308. Cast of a smaller twentieth caudal vertebra ; pi. xxxvi. 

 figs. G, 7. 



