315 



23. 

 T. with a conic, fub-pellucid, white (hell, with (ixDenticulatus. 

 volutions, terminating in an obtufe point, furnifhed with 

 nine or ten coarfe ribs, that projetl at the top of each 

 fpire, forming ftrong indentations like the preceding 

 fpecies: aperture fub-orbicular; outer lip thickened by 

 a rib ; pillar lip fmooih, indented, with one or two fmall 

 tubercles at the bafe adjoining the ribs. Length not quite 

 a quarter of an inch; breadth one half its length. 



This fpecies we have received with the lad from Wey- 

 7nouth, and at firil fight took it to be a mere variety of 

 that fneil; but upon more attentive comparifon, it is 

 found to have the aperture more approaching to round, 

 and not properly marginatcd, but only thickened by a 

 rib ; it is much more conic, the ribs flronger, lefs nume- 

 rous, and forming deeper denticulations at the junction 

 of each fpire; the interftices between the ribs deilitute of 

 ftrize. and fub-pellucid ; and what feems the flrongeft fpe- 

 cific diOinfiion is, that the ribs do not undulate, but run 

 oblique to the left, from the aperture to the apex. 



** 24. 



Turbo Cimex. Lin. Syft. p. 1253.— Gmel. Syji. p. 3589. 5,. Cimex- ■ 



Tnrt. Lin. iv. p. 481. — Gtcalt. t. 44. X. 



Don. Br. Shells, i. t. 2. f. 1. 1. 

 Turbo cancellatus. Da Cojla. p. 104. t. 8. f. 6. 9. 



T. with four ftrong, conic, cancellated, white volu- 

 tions, well defined by a ccnfiderable deprefied line: it is 

 remarkably thick for its fize, and the decuflfated liriae are 



S f 2 coarfe 



