188 



LIST OF FIGURES. 



Figure Vol. II. page 



272. Pomalostegus stellatus, \ ......... 57 



273. Hyalopomatus Langerhansi, \ . . . . . . . . .57 



XVIII. Characteristic Deep-Sea Types. — Mollusks. (Figs. 271-337.) 



Cephalopods. 



274. Opisthoteuthis Agassizii, about ^ (Verrill) 



275. Nectoteuthis Pourtalesii, f (Verrill) 



276. Mastigoteuthis Agassizii, -^ (Verrill) 



277. Eledone verrucosa, \ (Verrill) 



278. Alloposus mollis, f (Verrill) . 



279. Benthoteuthis, £ (Verrill) 



280. Spirula, l£ (Huxley) . 



281. Architeuthis princeps, ■£§ (Verrill) 



Gasteropoda and Lamellibranchs 



282. Pleurotoma (Aucistrosyrinx) elegans, | (Dall *) 



283. Pleurotoma subgruudifera, about \ 



284. Dentalium perlongum, \ . 



285. Calliostoma aurora, \ 



286. Gaza superba, lj6 • 



287. Leptothyra induta, \ 



288. Pleurotomaria Adansoniana. 



289. Pleurotomaria Quoyana, \ 



290. Marginella Watsoni, \ 



291. Piiugicula leptocheila, \ . 



292. Cancellaria Smithii, f 



293. Mitra Swainsoni, | . 



294. Typbis longieornis, \ 



295. Triforis longissimus, \ 



296. Siliquaria modesta, l ^ 5 - 



297. Vermetus erectus, i^ 5 



298. Pecteu (Amusium) Dalli, \ 



299. Pecteu phrygium, \ 



300. Cetoconcba bulla, \ 



301. Cetoconcha bulla, interior of valve, 



302. Cetocboncba elongata, \ . 



303. Tindaria cytberea, l ^ 



304. Cardium peramabilis, \ . 



305. Modiola polita, £ . 



306. Cuspidaria microrbina, \ 



307. Cuspidaria microrhina, valve seen from the binge, 



308. Verticordia elegantissima, \ 



309. Verticordia perversa, \ . 



310. Bushia elegans, | 



311. Meiocardia Agassizii, 1 ^ 5 - 



312. Vesicomya venusta, l j 5 . 



Brachiopod. 



313. Terebratula cubensis attached to piece of 



314. Terebratula cubensis, interior of valve, 



315. Waldheimia floridana, 1 . 



coral, \ (Davidson) 

 |^ (Davidson) 



58 

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 62,63 



66 

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76 



76 

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1 Mr. Dall has supervised the drawings of the Gasteropods and Lamellibranchs. 



