a — —— 
MOLLUSCA AND SHELLS. 
above, enlarged ; 218 ¢, 
and 218 6, the shell, seen from 
the shell, 
natural size.—p- 187. . 
Fig. 219. Trocuus SPURCUS, pro 
of the shell, enlarged ; 
fat 919 b. 
file, 219 a, basal, and 2 : 
219 c, natural size.—p- 188. 
superior View 
rTP WwW aS > bs 2?2\) a 
Fie. 220. TROcHUS CIRCUMSUTUS, profile view of the shell ; ; 
fol bod med . 
base of the shell.—p. 176. 
Fig. 221. TRocHUS BICR 
921 b, and 221 ¢, details of sculpture 
1 : ORR 1-0 
ENATUS, the shell, 1n profile; 221 a, base 
he shell of the side and 
of the shell ; 
base, magnified.—p. 179. 
2 fs 222 € nd 
Fie. 222. TRocHUS ROTELLINUS, the profile, 222 a, the top, a 
bond hed heel heed @ ; ‘ 
999 b. the base of the shell, enlarged ; 929 c, natural size.—p. 19 
he el hd 9 
Fig. 223. Trocnus COLUBRINUS, a green, bro 
a smooth, uniformly green specimen, 
subcarinate, tessellated 
wn-spotted speci- 
3 tinted red be- 
men; 223.4, 
neath, with the animal protruded ; 223 4, : 
specimen, with the animal, seen from below ; 223 ¢, portion of the 
lingual organ, highly magnified.—p. 185. 
Fig. 224. TRocHUS ATRO-PURPUREUS, the shell, seen ren He 
enlarged ; 224 a, shell, with the animal, as in progression ; aes a 
shell, with the animal, as seen from beneath ; 224 ¢, details of 
sculpture, magnified ; 224 d, natural size; 224 e, base of shell.— 
p. 187. 
Fig. 225. Trocuus INSTRICTUS, dorsal, and 225 a, ventral views 
of the shell, enlarged; 225 8, details of sculpture, magnified; 225 e, 
natural size.—p. 190. 
Fig. 226. SoLarium EGENUM, lateral view of the shell, enlarged ; 
926 a, base of the shell, enlarged; 226 6, details of sculpture, 
p. 196. 
magnified ; 226 c, natural size. 
PLATE #4. 
Fig. 227. Trocuus (Bembicium) squAmirerus (2), Koch, shell, 
with the animal, as in progression; 227 a, ventral view of the 
same.—p. 192. 
Tr: 91° . AD ‘a 7a) A ] 1 
Fig. 228. MARGARITA MAGELLANICA, shell, with the animal, as 
in crawling, enlarged; 228, plantar view of the animal and 
shell, enlarged ; 228 6, ventral view of the shell, an angular spe- 
cimen ; 228 c, the opereulam.—p. 192. 
ae SC} ae e we eta ‘ ? * 
Fig. 229. MarGArita Conica, animal, with the shell, as in pro- 
LACT Snark eeu) : a 
gression, magnified ; 229 a, and 229 6, enlarged views of the head 
of the animal, above and beneath; 229 ce, natural size.—p. 194. 
Mo 920 } al > IER. “f 3 
Fig. 230. Marcarita persica, ventral view of the shell ; 230 a, 
basal view of the same.—p. 193. 
Rete Cho eule 
Fig. 231, Lacuna carmnata, an elongated specimen of the 
shell; 231 a, ventral vi I 31 ¢ 
rs c vle € : iy shHne } . yee 
' w of a short specimen; 231 6, dorsal 
view of the same, in outline.—p. 194 
Fig. 233. Lirrorva Granpinosa, shell. with the ani $1 
; ; 1e animal, as in 
progression ; 233 a, locomotive disk.—p. 203. 
Fig. 234, Lrrrorma PYRAMIDALIS, shell, with the animal. as in 
progression ; 234 a, locomotive disk.—p. 202. 
Fig. 235. Lirrortwa OBESA, shell, witl 
1 the animal, as j ; 
| : C in ITO- 
gression ; 235 a, ; 
ventral view of the animal.—p, 202 
y } fed . 
Fig. 236. Lrrrorina PLENA, ventr 
the shell, enlarged; 236 1 
shell, enlarged; 236 6, natural size.—p. 201 
, 92% 
Fig. 237. Lirroriwa PATULA, ventr 
dorsal view of the shell.—p. 197 
Fig. 238. Lr 
. 238. Li vA LE 
: g y TEORIN A LEPIDA, ventral, and 
a checked Specimen, enlar 
val 1eky, enlarged ; 238 ¢, natural size.—p. 199, 
Fig. 239. Lirrorina ACUMINATA, Vv 
men, magnified ; 
larged ; 
al, and 236 a, dorsal views of 
al view of the shell ; 237 a, 
99 : 
238 a, dorsal views of 
ged; 238 1 ‘ 7] i 
ged; 238 b, dorsal view of the white 
tae . entral view of a large speci- 
“9d a, dorsal view of a 
slender speci 
a specimen, en- 
239 6, natural s1ze.—p. 200 | 
Fig. 240. LirrorinA CALIGINOSA, ventral, and 240 a, dorsal 
_ views of the shell, enlarged ; 240 4, natural size.—p. 198, 
Fig. 241. Lirrorrva scuTULATA, ventral view of the shell 
241 a, dorsal view of the shell.—p. 200. 
Fig. 242. MrLampus MUCRONATUS, dorsal view of the shell, en- 
larged ; 242 a, ventral view of the shell, natural size ; 249 b, the 
aperture, enlarged.—p. 204. 
Fig. 243. Mrnampus (spec. indet.), the animal, in progression : 
243 a, the head, from above. 
Fig. 244. ScaLArrIA TEXTURATA, ventral view of the shell, en- 
larged; 244 a, junction of the whorls at the suture, enlarged ; 
p. 206. 
Fig. 245. ScALARIA GRACILENTA, ventral view of the shell, mag. 
244 b, natural size. 
nified; 245 a, natural size ; 245 6, details at the suture, magnified, 
—p. 205. 
Fig. 246, Srinirer ACICULA, ventral view of the shell, enlarged; 
246 a, profile view of the same; 246 6, natural size.—p. 207, 
Fig. 247. STILIFER (2), animal, with an outline of the 
shell, taken from Holothuria, at Taheiti.—p. 208. 
Fig. 248. Haioris crispata, aperture of the shell; 248 a, back 
of the shell.—p. 209. 
oR Ars We ieee 
Fig. 249. SroMATELLA TUMIDA, ventral view of the shell; 249 a, 
dorsal view of the shell.—p. 209. 
Fig. 250. SroMATELLA DECOLORATA, ventral, and 250 a, dorsal 
views of the shell; 250 6, details of sculpture, magnified.—p. 210. 
Fig, 251. PLANAXIS LINEOLATUS, ventral, and 251 a, dorsal 
9 
p. 203. 
views of the shell, enlarged ; 251 0, natural size. 
Fig. 252. Litropa DECUSSATA, ventral view of the shell, greatly 
magnified ; 252 a, natural size.—p. 199. 
Fig. 253. Narica Lewis [N. herculea, Middendorff, Beitrage 2. 
einer Malac. Ross. II, 96, pl. 7, f. 5, 6, 7, anno 1849], ventral 
view of the shell; 253 a, the opereulum.—p. 211. 
Fig. 254. NavicA cAURINA, ventral view of the shell; 204 «, 
dorsal view of the same.—p. 212. 
Fig. 255, NaAvicA prLecTA, ventral, and 255 a, dorsal views of 
the shell.—p. 215. 
Fig. 256. Natica auama, ventral, and 256 a, dorsal views of 
the shell.—p. 214. 
Fig. 257. Natica sonuTa, ventral, and 257 a, dorsal views of 
the shell.—p. 215. 
Fig. 259. SIGARETUS ANTARCTICUS, dorsal view of the animal; 
259 a, lateral, and 259 8, plantar views of the animal; 29) ¢, 
head, with the proboscis protruded.—p. 216. 
Fig. 260. SiGARETUS PRATENUIS, lateral view of the animal; 
260 a, the dorsal, and 260 6, the plantar views of the animal.— 
Dee. 
Fig. 261. RissoA ampicua, ventral, and 261 a, profile views of 
the shell, enlarged ; 2612, the aperture, much enlarged; 261 ¢, 
p. 217. 
Fig. 262. Pyramipetxa (spec. indet.), shell, with the animal, as 
natural size. 
in progression ; 262 a, animal and shell, viewed from below. 
Fig. 263. ToRNATELLA BULLATA, ventral view of the shell, en- 
Vr » . A a i eo r¢ 7 a6 .7 1— » 
larged ; 263 a, dorsal view of the same; 263 4, natural size.—f} 
218. 
Fig. 264. Butta srrascrata, dorsal view of the shell, with the 
: ; 
animal.—p, 220, 
be ~ n 4 ; a. the 
Fig. 265. Buia prApHANA, dorsal view of the animal, with . 
. \ - a " ~- 7 ~, 112 ; the 
shell; 2654, the ventral, and 265 6, the lateral view ol 
: 
: 
