348 MOLLUSCA. MURICIBJE. Fusus. 
cent shells' were thrown upon the sands at Warren’s Point, after a severe 
thunder storm. 
EXTINCT SPECIES. 
1. P. nexilis. — Obovate, clavate, with decussating elevated strise ; spiral 
striae uniform, most prominent ; spire slightly produced — (Murex nexilis, 
Brander, f 55.) Sower. Min. Conch, t. cccxxxi — London Clay. 
2. P. Greenwoodii — Pyriform, with a short produced spire, reticulated with 
scattered elevated striae; beak pointed; shell thin. — Sower. Min. Conch, 
t. ccccxcviii. — Crag. 
Two species are noticed as figured by Brander, whose work I have no op- 
portunity of consulting, viz. f. 52, 53, . and 54, which last is by Parkinson 
(Org. Rem. 67-) considered as agreeing with Pyrula laevigata of Lamark, while 
Mr Mantell (Geol. Suss. 268.) denominates it P. hulbiformis, — f. 52, 53, the 
Murex pyrus of Brander. These two species occur in the London Clay. 
Gen. LXXIX. FUSUS. — Shell pisiform, ventricose in the 
middle, spire produced ; right margin of the canal patu- ' 
lous. 
* Whorls destitute of longitudinal ribs. 
329. F. antiquus. — Whorls eight, ventricose, with obsolete 
waved spiral striae, crossed by longitudinal wrinkled lines of 
growth. 
Bucc. album, laeve. List. An. Ang. 155. t. iii. f. i. Conch, t. Dccccxiii. f. 
4 — Murex antiquus, Linn. Syst. i. 1222.— M. despectus, Penn. Brit. 
Zool. iv. 124. t. Ixxviii.— M. antiquus. Mull. Zool. Dan. t. cxcviii. 
Don. Br. Sh. t. xxxi. — M, desp. Mont. Test. Brit. 256 — In deep bays, 
common. 
Length from 4 to 6 inches, greatest breadth between 2 and 3 ; white, the 
inside with a yellowish tinge ; cuticle absent ; whorls thick, rounded, rather 
coarse on the surface ; aperture ovate, the outer lip thin at the edge, inner 
lip smooth, canal short, nearly straight. The animal is white, with a cor- 
neous pyriform lid. It is used as a bait for cod, and sometimes as food. The 
sheU, suspended horizontally, is employed in the Zetland cottage as a lamp, 
the cavity containing the oil, and the canal the wick. Dr Turton mentions 
(Conch. Diet. 69.) two varieties in the shell ; the first with the whorls nearly 
separated, and the second leaving the whorls furnished with longitudinal 
ribs ; in a specimen which I possess, the whorls are prominently angular in 
the middle, and the specimen bears a close resemblance to the figure of Buc-* 
cinum carinatum of the Conchological Dictionary. 
330. F. corneus. — Shell lengthened, spirally striated ; the ca- 
nal produced and slightly recurved. 
Buccinum angustius. List. An. Ang. 157. t. iii. f. 4. Conch, t. Dccccxiii. 
f. 5. — Murex corneus, Linn. Syst. i. 1234. Penn. Brit. Zool. iv. 124. 
t. Ixxvi. f. 99. Don, Brit. Shells, t. xxxviii. Mont. Test. Brit. 258. 
— In sandy bays, common. 
Length 3 inches, breadth about 1 ; shell white, usually covered with a 
thick brown epidermis ; whorls nine, compressed with a deep separating line ; 
