218 
B. CocctnEuua. Lam. 45.—Nassa IncrassaTa. £’. p. 
340.—Macg. Ab. p. 165.—Variety with a varie, 
Tritonta Varicosa. Turt. in Z. J. 2 t. 8. f. 4.— 
Oblong-conical, whorls six or seven, apex pointed ; 
with longitudinal ribs and transverse striz, variable in 
colouring, being mottled rufous, brown and white, pale 
lilac, uniform rufous ; aperture suborbicular ; outer lip 
gibbous on the back, denticulated within ; inner lip 
replicated and finely denticulated ; base of the canal 
with a constant small brown spot. %...4. Common, 
not unlike the precediug species. 
B. Ampicuum. Pult. Dor. p. 42.—Mont. p. 242. 
t.9. f. 7.—lLin. T. 8. p. 188. t. 4. f. 5.—Blain. 
Faun. Franc. p. 178.—Dor. Cat. p. 45. t. 18. f. 19. 
—D. p. 638.—Nassa A. F. p. 340.—Subconic, short, 
thick, strong, white; whorls six, finely striated and 
armed with distant longitudinal ribs which sweil into 
knobs at the sutures; aperture suborbicular, outer lip 
thickened by the rib and slightly denticulated, inner lip 
replicated, with generally two faint distant folds 0,58. 
...g. Weymouth, Portland, Poole, rare. 
B. Cinctum. Mont. p. 246. é 15. f. 1.—Lin. T. 
8. p. 1389.—D. p. 639.—Dor. Cat. p. 45. ¢. 14. f. 17. 
—Nassa C. F. p. 340. Oblong-conical, subfusiform 
