186 



FiGCEE 



183. 

 186. 

 187. 

 188. 



189. 

 190. 

 191. 

 192. 



LIST OF FIGURES. 



Scalpellum Darwinii, attached to manganese nocliilc 

 Shark's tooth, Oxyrhina (Challenger) 

 Ear-bone, Zyphius, 2,375 fathoms (Challenger) 

 Section of manganese nodule showing tympanic bone 



2,000 fathoms (Challenger) .... 

 Concretion, 333 fathoms, from Blake station 317, f 

 Modern greeusaud, 142 fathoms, from Blake station 314 

 ]\Iap showing distribution of bottom deposits . 

 Rock from Pourtal^s Plateau . ... 



A'OL. I. 



(Challenger) 



of Mesoplodon, 



a_5. 

 1 



PAGE 



268 

 268 

 268 



269 



276 

 278 

 286 

 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 



XY. 



Figure 



195. 



196. 



197. 



198. 



199. 



200. 



201. 



202. 



203. 



204. 



205. 



206. 



207. 



208. 



209. 



210. 



211. 



212. 



213. 



214. 



215. 



216. 



217. 



218. 



219. 



220. 



221. 



222. 



223. 



224. 



Sketches of the Characteristic Deep-Sea Types. — Fishes. (Figs. 



195-224.) 



Sternoptyx diaphana, ^ . 

 Cyelothone lusca, \ (U. S. F. C.) 

 Monolene atrimana, about 1 . 

 Barathronus bicolor, about ^ . 

 Barathrodemus manatinus, about | . 

 Aphyonus mollis, about |^ . . . 



Ophidium cervinum, about ^ (U. S. F. C.) 

 Macrurus caribbfeus, about | (U. S. F. C.) 

 Bathygadiis arcuatus, i (U. S. F. C.) 

 Phycis Chesteri, | (U. S. F. Q.) . 

 Bregmaceros atlanticus, | . . . 

 Plectromus suborbitalis, \ (U. S. F. C.) . 

 Callionymus Agassizii, about ^ . , 



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

 Peristediuna longispatha, about * 

 Xest of Pterophryne in Gulf-weed, about ^ 

 Antennarius, | ..... 



Alepocephalus Agassizii .... 

 Halosaurus macrochir, ^ . 

 Chauliodes Sloani, ■:^^ (U. S. F. C.) 

 Ipnops Murrayi, about ^ . . . 



Bathysaurus Agassizii, about ^ 

 Bathypterois qnadrifilis, about § 

 Benthosaurus grallator, ^ . . . 



Scopelus Miilleri, 1 (U. S. F. C.) . 

 Malacosteus niger, \ . . . . 

 Synaphobranchus pinnatus, ^ (U. S. F. C.) 

 Xemichthys scolopaceus, \ (U. S. F. C.) 

 Xettastoma procerum, ^ 

 Gastrostomus Bairdii, ^ (U. S. F. C.) 



