MOLLUSCA AND SHELLS. 
same; 265 c, front view of the animal, 265 d, the shell, a small 
specimen.—p. 222. 
Fig. 266. BULLA RUBIGINOSA, the animal and shell, seen from 
below; 266 a, shell, with the animal, seen from above.—p. 221. 
Fig. 267. BULLA PARALLELA, ventral, and 267 a, dorsal views 
of the shell. —p. 220. 
PLATE(15.) jg 
Fig. 268. APLYSIA PULMONICA, lateral view of the animal.—p. 
228. 
Fig. 269. BURSATELLA LACINULATA, lateral view of the animal; 
269 a, plantar view of the animal.—p. 223. 
Fig. 270. STYLOCHEILUS LINEOLATUS, lateral view of the animal, 
extended ; 270 a, dorsal view, with the branchie displayed; 2700, 
plantar view.—p. 225. n 
Fig. 271. STYLOCHEILUS QUERCINUS, lateral view of the animal, 
extended.—p. 226. | 
Fig. 272. JANTHINA EXIGUA, lateral view of the shell, contain- 
ing the animal; 272 a, the buccal barbs, magnified.—p. 226. 
Fig. 273. JANTHINA FRAGILIS, shell, with the animal and its 
float, seen from the front. —p. 227. 
Fig. 274. TRICHOTROPIS PUSILLA, ventral view of the shell, 
enlarged ; 274 a, dorsal view of the shell, enlarged; 274 2, natural 
size. 
Fig. 275. TRICHOTROPIS CANCELLATA, the operculum.—p. 219. 
Fig. 276. PYRULA DEFORMIS, small variety of the shell, with the 
animal; 276 a, animal, with the shell, seen from below. —p. 227. 
Fig. 277. FUSUS GEVERSIANUS, smooth shell, with the animal, 
as in progression; 277a, clathrate shell, with. the locomotive 
disk of the animal; 277 2, proboscis of the animal, protruded.—p. 
227. 
Fig. 278. FUSUS LACINIATUS, shell, with the animal, as in pro- 
gression.—p. 228. | 
Fig. 279. FUSUS CRISPUS, a large specimen, with the animal, as 
in progression; 279 a, a slender shell, with the plantar disk of 
the animal, enlarged; 279 b, dorsal view of a curious angular 
variety of the shell; 279 c, the opereulum.—p. 229. 
Fig. 280. Fusus DECOLOR, shell, with the animal, as in pro- 
gression.—p. 230. 
Fig. 281. Fusus PLUMBEUS, shell, with the animal, as in pro- 
gression; 281 a, ventral view of a small shell.—p. 230. 
Fig. 282.—Fusus LIRATUS, shell, with the animal, enlarged, as 
in progression; 282 a, animal, seen from beneath, enlarged 282 b, 
natural size.—p. 231. 
Fig. 283. FUSUS INCISUS, ventral, and 283 a, dorsal view of the 
shell.—p. 232. 
. Fig. 284. FUSUS FIDICULA, ventral, and 284 a, dorsal views of 
the shell, enlarged; 284 b, natural size.—p. 233. 
Fig. 285. Fusus ORPHEUS, ventral, and 285 a, dorsal view of 
the shell, enlarged, 285 b, natural size.—p. 234. 
Fig. 286. Fusus SUBLUTUS, ventral, and 286 a, dorsal views of 
the shell, somewhat enlarged ; 286 b, natural size.—p. 235. 
PLATE (16) 17 
Fig. 287. MUREX (TROPHON) FRUTICOSUS, dorsal, and 287 a, 
ventral views of the shell. —p. 236. 
Fig. 288. MONOCEROS IMBRICATUM, shell, with the animal, as in 
progression; 288 a, plantar surface of the foot. —p. 237. 
3 
Fig. 289. TURBINELLA AMPLUSTRE, basal view of the animal, 
with outlines of the shell.—p. 238. 
Fig. 290. TURBINELLA CORNIGERA, shell, with the animal, as in 
progression; 290 a, plantar surface of the foot.—p. 237. 
Fig. 291. TURBINELLA ARMATA, lateral view of the shell, with 
the animal, extended.—p. 238. 
Fig. 292. TRITON VARIEGATUM, the animal, extended.—p. 239. 
Fig. 293. TRITON ANUS, animal, as seen from beneath.—p. 240. 
Fig. 294. TRITON DISTORTUM, ventral view of the animal and 
shell; 294 a, lateral view of the animal.—p. 240. 
Fig. 295. TRITON TUBEROSUM, lateral view of the animal, with 
the shell, in outline.—p. 239. 
Fig. 296. Triton BRASILIENSIS, ventral view of the shell, a 
small specimen ; 296 a, animal and shell, as in progression; 296 b, 
the same, seen from below. [See Appendix.] 
Fig. 297. TRITON MUNDUM, ventral view of the shell, enlarged ; 
297 a, lateral view of the shell, with the animal extended; 297 5, 
[See Appendix. | 
Fig. 298. TRITON CANCELLATUM, shell, with the animal, as in 
progression, female form; 298 a, the male, same view; 298 2, the 
male organ; 298 c, plantar surface of the foot.—p. 241. 
plantar view of the same. 
PLATE LIA 1% 
Fig. 299. RANELLA BUFONIA, animal, as in progression, with an 
outline of the shell.—p. 242. 
Fig. 300. RANELLA GYRINUS, the animal, with the shell, as in 
progression; 300 a, plantar disk of the animal, with the shell. — 
p. 242. 
Fig. 301. RANELLA VEXILLUM, animal, with an outline of the 
shell, as in progression ; 301 a, plantar disk; 301 5, animal of the 
variety.—p. 242. 
Fig. 302. RANELLA VENTRICOSA, the animal, as in progression, 
with the shell, in outline; 302 a, the verge and head, in outline. 
—p. 243. 
Fig. 904. PURPURA ELONGATA, shell, with the animal, scen from 
below; 804 a, shell and animal, as in progression.—p. 246. 
Fig. 905. RICINULA TUBERCULATA, lateral view of the shell and 
animal; 305 a, the same, from beneath.—p. 247. 
Fig. 806. PURPURA VIOLACEA, plantar view of the animal, with 
the shell in outline.—p. 246. 
Fig. 307. RICINULA ARACHNOIDES, the animal, as in progression, 
with the shell in outline.—p. 247. 
Fig. 908. RICINULA CLATHRATA, animal, as in motion, with an 
outline of the shell.—p. 248. 
Fig. 309. PURPURA TENIATA, the shell, with the animal, seen 
from beneath; 809 a, the operculum.—p. 244. _ 
Fig. 310. PURPURA OSTRINA, ventral view of the shell; 310 a, 
dorsal view of the shell.—p. 244. 
Fig. 811. PLEUROTOMA TIGRINA, animal, with the shell, seen 
from below.—p. 249. 
Fig. 312. PLEUROTOMA SEMINIFERA, ventral, and 312 a, dorsal 
views of the shell. —p. 248. 
Fig. 313. MANGELIA CITHARA, ventral, and 818 a, dorsal views 
of the shell, enlarged; 313 b, natural size. —p. 250. 
Fig. 314. TEREBRA CRENULATA, outline of the shell, with the 
animal protruded, 314 a, plantar disk; 314 b, front of the animal, 
showing the position of the mouth. —p. 250. 
Fig. 815. TEREBRA BABYLONIA, Outline of the shell, with the 
animal, as in progression.—p. 251. 
Fig. 816. TEREBRA LÆVIGATA, Outline of the shell, with the 
animal, as in progression.—p. 251. 
