162 
shagreen like brownish drab epidermis, spirally striated ; 
whorls five, slightly rounded, apex obtnse, base subca- 
rinated and a little rounded beneath; aperture subquad- 
rangular, pearly within; umbilicus small but long. 
3—%. Kyles of Bute. 
* * Imperforated. 
T. Crassus. Mont. p. 281.—Lin. T. 8. p. 154.— 
Dor, Cat. p. 48. t.17. f. 3. & 7.—D.p. 796.—TurBo 
Linratus. Da Cos. p. 100. t. 6. f. '7.—Don. t. 71.— 
F. p. 323.—TrR. Punctutata. Blaim. Faun. Frane. 
é 11. f. 2.—Strong, thick, subconic, whorls five, 
rounded, the suture small and depressed, apex mode- 
rately pointed but generally worn ; cinereous or light 
brown covered with fine close set purplish brown ziczac 
lines or vice versa; base convex; aperture rounded, 
pillar lip white, and concave in the middle, in front of 
which is a blunt tooth ; outer lip acute, edged internally 
with purplish black ; umbilicus indistinct, if any. 0,80. 
On rocks about mid-tide, not uncommon. 
T. Granuatvus. Born. t. 12. f. 9,10.—Blain. 
Hauna. Franc. €.10. f. 5.—Lam. 53.—T. Paprit0- 
sus. Da Cos. p. 38. €. 3. f. 5,6.—Don, 4. ¢. 127.— 
Dor. Cat. p. 48. t. 16. f.5,6.—F.p.323.—D. p. 800. 
