478 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Argonauta compressa, 225, 227. Boreofusus berniciensis, 303. 
conradi, 226, 229. Bornia, 413. 
cornuta, 224, 226, 228. Borsonella, 258, 275, 276, 277. 
crassicostata, 229. Borsonia, 258, 275, 276, 277. 
cygnus, 226, 227. agassizit, 275. 
dispar, 226, 228, 229. coronadoi, 277. 
expansa, 924, dalli, 258, 275, 278. 
fragilis, 226, 229. dregensis, 275. 
geniculata, 226, 229. hooveri, 276. 
gondola, 229. prima, 258. 
gracilis, 228. saceoi, 277. 
grandiformis, 225, 227. Buccinopsis, 304. 
griineri, 224. Buccinum aquilarum, 321. 
haustrum, 227. dimidiatum, 245. 
hians, 226, 229. filosum, 304. 
kochiana, 229. lanceatum, 245. 
maxima, 227. maculatum, 245. 
mutica, 224. mutabile, 306. 
navicula, 226, 229. papillosum, 306. 
naviformis, 227. reticulatum, 306. 
nitida, 229. subulatum, 245. 
nodosa, 226, 228, 229. Bulla, 248, 244. 
nouryi, 224, 226, 228. abyssicula, 244. 
obtusangula, 227. ampulla, 244. 
oryzata, 228. bidentata, 241. 
oweni, 229. lignaria, 238. 
pacifica, 225, 226, 228. Bullaria, 243, 244. 
papyracea, 227. ~ Bullea, 244 
papyria, 226, 227. morgana, 244. 
polita, 229. Bullin4é, 241. 
raricostata, 229. Bullinella, 241, 242. 
rotunda, 228. Bullus, 244. 
rufa, 226, 229. . Bursa, 320. 
sulcata, 227. caelata, 321. . 
tuberculata, 228. calctpicta, 320. 
tuberculosa, 228. 
Aspella, 312. CABOCHON, 329. 
Assula, 238. Cadulus, 360, 361. 
Astarte longirostris, 411. albicomatus, 360. 
magellanica, 411. californicus, 360. 
Astyris, 310. peruvianus, 361. 
saintpairiana, 310. platystoma, 361. 
striatus, 360. 
BARBATIA, 398, 399. Calliostoma iridium, 348. 
Basiliola, 442. Calliotectum vernicosum, 257, 274. 
Bathyarca, 397. Callistochiton periconis, 355. 
Bathybembix, 348. Callocardia, 415. 
Bathysciadium, 338, 339. atlantica, 415. 
conicum, 338. gigas, 418. 
pacificum, 339. leeana, 418. 
Bellardia, 259, 267. lepta, 426, 418. 
Bellardiella, 259, 260, 261. ovalis, 417. 
Bembix aeola, 348. stearnsii, 417. 
Benthodolium, 321. Callogonia, 478, 419. 
abyssorum, 321. angulata, 419. 
pacificum, 328. Camptonectes, 403, 404. 
Beringius, 305. Cancellaria, 294. 
