| 
| 
ee 
MOLLUSCA AND SHELLS. 9 
same; 265 ¢, front view of the animal; 265 d, the shell, a small 
specimen.—p. 222. 
Fig. 266. Buia rupiainosa, 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 16. 
Fig. 268. ApiystA PuLMoNIcA, lateral view of the animal.—p. 
Fig. 269. BursaATELLA LACINULATA, lateral view of the animal ; 
269 a, plantar view of the animal.—p. 223. 
Fig. 270, SryLocnEILUS LINEOLATUS, lateral view of the animal, 
extended; 270 a, dorsal view, with the branchix displayed; 270 4, 
plantar view.—p. 225. 
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. TRicnoTropis PUSILLA, ventral view of the shell, 
enlarged; 274 a, dorsal view of the shell, enlarged; 274 b, natural 
size. 
Fig. 275. TRICHOTROPIS CANCELLATA, the operculum.—p. 219. 
Fig. 276. PyruLa pDerormis, 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; 277 a, clathrate shell, with the locomotive 
disk of the animal; 277 6, proboscis of the animal, protruded.—p. 
227. 
Fig. 278. Fusus LaciniAtus, shell, with the animal, as in pro- 
gression.—p. 228. 
Fig. 279. Fusus orispus, a large specimen, with the animal, as 
in progression ; 279 a, a slender shell, with the plantar disk of 
the animal, enlarged; 279 6, dorsal view of a curious angular 
variety of the shell; 279 c, the operculum.—p. 229. 
Fig. 280. Fusus precotor, shell, with the animal, as in pro- 
gression.—p. Your 
Fig. 281. Fusus ptumpevs, shell, with the animal, as in pro- | 
gression ; 281 a, ventral view of a small shell—p. 230. 
Fig. 282. Fusus tiratus, shell, with the animal, enlarged, as 
in progression; 282 a, animal, seen from beneath, enlarged; 282 6, 
natural size.—p. 231. 
Fig. 283. Fusus 1ncrsus, ventral, and 283 a, dorsal view of the 
shell.—p. 232. 
Fig. 284. Fusus ripicuLa, ventral, and 284 a, dorsal views of 
the shell, enlarged ; 284 6, natural size.—p. 233. 
Fig. 285. Fusus orpnkus, ventral, and 285 a, dorsal view of 
2A a ¢ ~47, 2 
the shell, enlarged ; 285 6, natural size.—p. 234. 
| 
Fig. 286. Fusus suBLUTUS, ventral, and 286 a, dorsal views of | 
‘ ; oP nae ae 925 
the shell, somewhat enlarged ; 286 4, natural size.—p. 230. 
PLATE at 
F QQ7 
Fig. 287. Murex (Tropuon) FRuTICOsUS, dorsal, and 287 a, 
: °F 
ventral views of the shell.—p. 236. 
Fig. 288. MoNnocEROS IMBRICATUM, shell, with the animal, as in 
progression ; 288 a, plantar surface of the foot.—p. 237. 
3 
| 
| 
Fig. 289. TurBrxELLA AMPLUSTRE, basal view of the animal, 
with outlines of the shell.—p. 238. 
Fig. 299. TurBInELLA corNiceRrA, shell, with the animal, as in 
progression ; 290 a, plantar surface of the foot.—p. 237. 
Fig. 291. TurpineLitaA ARMATA, lateral view of the shell, with 
the animal, extended.—p. 238. 
Fig. 292. Triton varte@atum, the animal, extended.—p. 239. 
Fig. 293. Triton ANus, animal, as seen from beneath.—p. 240. 
Fig. 294. Triton pistortum, 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. Trrron Brasiriensis, ventral view of the shell, a 
small spceimen; 296 a, animal and shell, as in progression ; 296 8, 
[See Appendix. ] 
Fig. 207. Triton muNnpuM, ventral view of the shell, enlarged ; 
the same, seen from below. 
297 a, lateral view of the shell, with the animal extended; 207 0, 
[See Appendix. ] 
Fig. £98. Trrron CANCELLATUM, shell, with the animal, as in 
plantar view of the same. 
progression, female form; 298 a, the male, same view; 295 b, the 
male org 
ra) 
an; 298 ¢, plantar surface of the foot—p. 241. 
PLATE £8. 
Fig. 299, RANELLA BUFONIA, animal, as in progression, with an 
outline of the shell.—p. 242. 
Fig. 800. 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 ; 501 a, plantar disk ; 801 4, 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. 245. ; 
Fig. 304. Purpura ELONGATA, shell, with the animal, seen from 
below ; 304 a, shell and animal, as in progression.—p. 246. 
Fig. 305. RicinuLa TUBERCULATA, lateral view of the shell and 
animal; 305 a, the same, from beneath.—p. 247. 
Fig. 306. Purpura VIoLaAcga, plantar view of the animal, with 
the shell in outline.—p. 246. 
Fig. 307. RicinuLA aARACuNoIDES, the animal, as in progression, 
with the shell in outline.—p. 247. 
Fig. 508. RicinuLA CLATHRATA, animal, as in motion, with an 
outline of the shell.—p. 248. 
Fig. 309. Purpura Taniata, the shell, with the animal, seen 
from beneath ; 309 a, the operculum —p. 244. 
Fig. 310. Purrura OsTRINA, ventral view of the shell; 310 a, 
dorsal view of the shell.—p. 244. 
Fig. 511. PLevroroma 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. 813. MANGELIA CITHARA, ventral, and 315 a, dorsal views 
of the shell, enlarged ; 513 6, natural size.—p. 250. 
Fig. 314. TrREBRA CRENULATA, outline of the shell, with the 
animal protruded; 314 a, plantar disk ; 314 6, front of the animal, 
showing the position of the mouth.—p. 250. 
Fig. 315. TEREBRA BABYLONIA, outline of the shell, with the 
animal, as in progression.—p. 251. 
Fig. 316. TEREBRA L&VIGATA, outline of the shell, with the 
animal, as in progression.—p. 201. 
