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, f (Verrill) 60 



279. Benthoteuthis, f (Verrill) 61 



280. Spirula, 1^ (Huxley) 61 



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



Gasteropods and Lamettibranchs. 



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



283. Pleurotoma subgrundifera, about f .66 



284. Dentalium perlongum, ^ .......... 67 



285. Calliostoma aurora, f 68 



286. Gazasuperba, lj* 68 



287. Leptothyra induta, f 69 



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



289. Pleurotomaria Quoyana, \ 69 



290. Marginella Watsoni, f 70 



291. Ringicula leptocheila, * . . 70 



292. Cancellaria Smithii, f 70 



293. Mitra Swainsoni, | 70 



294. Typhis longicornis, f 70 



295. Triforis longissimus, f 71 



296. Siliquaria modesta, l ^ 71 



297. Vermetus erectus, I'-f- 71 



298. Pecten (Amusium) Dalli, \ . 72 



299. Pecten phrygium, \ 72 



300. Cetoconcha bulla, \ 72 



301. Cetoconcha bulla, interior of valve, f 72 



302. Cetochoncha elongata, \ 72 



303. Tindaria cytherea, 1^ 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, ^ .......... 74 



310. Bushia elegans, f 74 



311. Meiocardia Agassizii, l y 5 - 74 



312. Vesicomya venusta, J j 5 - 75 



Brachiopods. 



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



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



315. Waldheimia floridana, l .-76 



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



