GASTEROPODA. 219 
\Fig. 16), rachidian teeth single, transverse, dentated in front ; 
uncini single. Carnivorous. 
Buccinum, L. Whelk. 
Etymology, buccina, a trumpet, or triton’s-shell. 
Type, B. undatum. Pl. V., Fig. 10. 
Shell few whorled; whorls ventricose; aperture large; canal 
very short, reflected; operculum lamellar, nucleus external. 
(See Pisania.) 
Distribution, 48 species. Northern and Antarctic seas. Low 
water to 100 fathoms. (Forbes.) (B.? clathratum, 136 fathoms, 
off Cape). South Australia. 
Fossil, 130 species, including Pisania, &c. Gault?—Miocene— 
Britain, France. 
-_ 
Ss) 
Fig. 83, Nidamental capsules of the Whelk.* 
The whelk is dredged for the market, or used as bait by 
fishermen; it may be taken in baskets, baited with dead fish. 
Its nidamental capsules are aggregated in roundish masses, 
which when thrown ashore, and drifted by the wind resemble 
corallines. Each capsule contains five or six young, which, 
when hatched, are like Fig. 83, b: a represents the inner side 
of a single capsule, showing the round hole from which the fry 
have escaped. 
Sub-genus, Cominella, Gray. Hx. B. limbosum, purpura 
maculosa, &c. Operculum asin fusus. About 12 species. 
PSEUDOLIVA, Swainson. 
Etymology, named from its resemblance to oliva, in form. 
Synonyms, Sulco-buccinum, D’Orbigny. Gastridium (Gray) 
G. Sowerby. 
* Fig. 88. From a small specimen, on an oyster-shell, in the cabinet of Albany Ifan 
cock, Esq. The line at 0 represents the length of the young shell, 
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