188 LIST OF FIGURES. 



FIGURE VOL. II. PAGE 



272. Pomalostegus stellatus, f .57 



273. Hyalopomatus Langerhansi, | . . . . . . . . .57 



XVIII. CHARACTERISTIC DEEP-SEA TYPES. MOLLUSKS. (Figs. 274-337.) 



Cephalopods. 



274. Opisthoteuthis Agassizii, about ^ (Verrill) 58 



275. Nectoteuthis Pourtalesii, f (Verrill) 59 



276. Mastigoteuthis Agassizii, ^ (Verrill) ....... 59 



277. Eledone verrucosa, \ (Verrill) 60 



278. Alloposus mollis, | (Verrill) . 60 



279. Benthoteuthis, f (Verrill) 61 



280. Spirula, ^ (Huxley) 61 



281. Architeuthis princeps, -^ (Verrill) 62, 63 



Gasteropods and Lamellibranchs. 



282. Pleurotoma (Ancistrosyrinx) elegans, f (Dall !) 66 



283. Pleurotoma subgrundifera, about | . . . . . . . .66 



284. Dentalium perlongum, i 67 



285. Calliostoma aurora, f .......... 68 



286. Gaza snperba, l^ 6 ........... 68 



287. Leptothyra induta, \ 69 



288. Pleurotomaria Adansoniana, f . . . . . . . . .69 



289. Pleurotomaria Quoyana, \ ......... 69 



290. Marginella Watsoni, f 70 



291. Ringicula leptocheila, \ 70 



292. Cancellaria Smithii, f .......... 70 



293. Mitra Swainsoni, f ........... 70 



294. Typhis longicornis, f 70 



295. Triforis longissimus, f .......... 71 



296. Siliquaria modesta, \^- .......... 71 



297. Vermetus erectus, 1^ 71 



298. Pecten (Amusium) Dalli, \ . . 72 



299. Pecten phrygium, \ 72 



300. Cetoconcha bulla, f 72 



301. Cetoconcha bulla, interior of valve, ^ ....... 72 



302. Cetochoncha elongata, |- .......... 72 



303. Tindaria cytherea, l-j& .......... 72 



304. Cardium peramabilis, f .......... 72 



305. Modiola polita, f 73 



306. Cuspidaria microrhina, \ ......... 73 



307. Cuspidaria microrhina, valve seen from the hinge, ^ . . .74 



308. Verticordia elegantissima, \ ......... 74 



309. Verticordia perversa, f .......... 74 



310. Bushia elegans, f ........... 74 



311. Meiocardia Agassizii, J -^ 5 - ......... 74 



312. Vesicomya venusta, l ^ 5 - .......... 75 



Brachiopods. 



313. Terebratula cubensis attached to piece of coral, \ (Davidson) . . 76 



314. Terebratula cubensis, interior of valve, ^^ (Davidson) ... 76 



315. Waldheimia floridana, \ . . . . . . . . . .76 



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



