188 



LIST OF FIGURES. 



FlGUEE 



272. Pomalostegus stellatus, f 



273. Hyalopomatus Langerhansi, ^ 



Vol. II. PA8E 

 . 57 

 . 57 



XVIII. Characteristic Deep-Sea Types. — Mollusks. (Figs. 274-337.) 



274. 

 275. 

 276. 



277. 

 278. 

 279. 

 280. 

 281. 



282. 

 283. 

 284. 

 285. 

 286. 

 287. 

 288. 

 289. 

 290. 

 291. 

 292. 

 293. 

 294. 

 295. 

 296. 

 297. 

 298. 

 299. 

 300. 

 301. 

 302. 

 303. 

 304. 

 305. 

 306. 

 307. 

 308. 

 309. 

 310. 

 311. 

 312. 



313. 

 314. 

 315. 



1-5 



\ 



Cephalopods 



Opisthoteuthis Agassizii, about ^ (Verrill) 

 Nectoteutbis Pourtalesii, |^ (Verrill) 

 Mastigoteutbis Agassizii, ^ (Verrill) 

 Eledone verrucosa, ^ (Verrill) . . 

 Alloi30sus mollis, | (Verrill) . 

 Bentboteuthis, ^ (Verrill) 

 Spirula, ij^ (Huxley) 

 Arcbiteutbis princeps, ^ (VerrUi) . 



Gasteropods and Lamellibranchs 

 Pleurotoma (Ancistrosyrinx) elegans, \ (Dall i) 

 Pleurotoma subgrundifera, about -| 

 Dentaliuni perlongum, \ . 

 Calliostoma aurora, | 

 Gaza superba, 1^^ . 

 Leptotbyra induta, ^ 

 Pleurotomaria Adansoniaua, f 

 Pleurotomaria Quoyana, ^ 

 Marginella Watsoni, | 

 Ringicula leptocbeila, | . 

 Cancellaria Smitbii, | 

 Mitra Swainsoni, | . 

 Typbis longicornis, | 

 Triforis loiigissimus, ^ 

 Siliquaria modesta, 1^^- 

 Vermetus erectus, l^^- 

 Pecten (Amusium) Dalli, ^ 

 Pecten pbrygium, \ 

 Cetoconcba bulla, | 

 Cetoconcba bidla, interior of valve, 

 Cetocboncba elongata, \ 

 Tindaria cytberea, 1^^ 

 Cardium peraniabilis, f 

 Modiola polita, | 

 Cuspidaria microrbina, \ 



Cuspidaria nncrorbina, valve seen from the binge, 

 Verticordia elegantissima, 

 Verticordia perversa, | . 

 Busbia elegans, ^ 

 Meiocardia Agassizii, 

 Vesicomya venusta, ly^- 



Brachiopods. 

 Terebratula cubensis attached to piece of coral, \ (Davidson) 

 Terebratula cubensis, interior of valve, i-|i (Davidson) 

 Waldbeiniia floridaua, \ ......... . 



^ Mr. DaU has supervised the drawings of the Gasteropods and Lamellibranchs. 



58 

 59 

 59 

 60 

 60 

 61 

 61 

 62,63 



66 

 66 

 67 

 68 

 68 

 69 

 69 

 69 

 70 

 70 

 70 

 70 

 70 

 71 

 71 

 71 

 72 

 72 

 72 

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 75 



76 



76 

 76 



