186 LIST OF FIGURES. 



Figure Vol. I. page 



185. Scalpellum Darwinii, attached to manganese nodule, \ (Challenger) . 268 



186. Shark's tooth, Oxyrhina (Challenger) 268 



187. Ear-bone, Zyphius, 2,375 fathoms (Challenger) 268 



188. Section of manganese nodule showing tympanic bone of Mesoplodon, 



2,600 fathoms (Challenger) 269 



189. Concretion, 333 fathoms, from Blake station 317, § .... 276 



190. Modern greensand, 142 fathoms, from Blake station 314, *J>- . . 278 



191. Map showing distribution of bottom deposits ...... 286 



192. Rock from Pourtales Plateau . 287 



XIII. The Physiology of Deep-Sea Life. (Figs. 193, 194.) 



193. Bunsen's apparatus, as modified by Jacobsen and Behrens (Voringen 



exp.) 295 



194. Map of specific gravity of sea-water of the Western North Atlantic 



(Buchanan) . . •. .299 



XV. Sketches of the Characteristic Deep-Sea Types. 



195-224.) 



Figure 



195. Stern optyx diaphana, \ . 



196. Cyclothone lusca, \ (U. S. F. C.) . 



197. Monolene atrimana, about \ . 



198. Barathronus bicolor, about f . 



199. Barathrodemus manatinus, about § . 



200. Aphyonus mollis, about f 



201. Ophidium cervinum, about \ (U. S. F. C.) 



202. Macrurus caribbams, about § (U. S. F. C.) 



203. Bathygadus arcuatus, % (U. S. F. C.) 



204. Phycis Chesteri, f (U."S. F. C.) 



205. Bregmaceros atlanticus, | 



206. Pleetromus suborbitalis, \ (IT. S. F. C.) 



207. Callionymus Agassizii, about \ 



208. Chiasmodon niger, about ^ (U. S. F. C.) 



209. Peristedium longispatha, about f 



210. Nest of Pterophryne in Gulf-weed, about 



211. Antennarius, § 



212. Alepocephalus Agassizii . 



213. Halosaurus macrochir, 1 . 



214. Chauliodes Sloani, T \ (U. S. F. C.) 



215. Ipnops Murrayi, about \ 



216. Bathysaurus Agassizii, about \ 



217. Bathypterois quadrifilis, about f 



218. Benthosaurus grallator, f 



219. Scopelus Miilleri, \ (U. S. F. C.) . 



220. Malacosteus niger, \ 



221. Synaphobranchus pinnatus, 1 (U. S. F. C.) 



222. Nemichthys scolopaceus, \ (U. S. F. C.) 



223. Nettastoma procerum, ^~ 



224. Gastrostomus Bairdii, \ (U. S. F. C.) 



