161 



T. CINERARIUS. Lin. 1229. List. t. 641. /. 31. 

 Ch.f. 1686. Don. t. 7 4., upper and lower figures. 

 Pen. 4. p. 127. D. p. TlS.Mont. p. 284. F. p. 

 322. Lam. 65 .T. LINEATUS. Da Cost. p. 43. t. 3. 

 f, 6. Dor. Cat. p. 43. t. 16. /. 11,2. Conical, 

 spirally striated, cinereous with fine approximate undu- 

 lated brown longitudinally oblique lines ; whorls little 

 elevated, the suture slender; apex rather pointed; 

 mouth angulated; umbilicus small but deep. |...f. 

 Common on Fuci at low water mark. 



T. TuMiDUs.3fo7tf.jp. 280. t. 10./. 4.- Lin. T. 8. 

 p. 153. Dor. Cat. t. 16. /. 9,10. F. p. 322. 

 T. PETHOLATUS. D. p. 776. Strong, subconical, 

 tumid, with five projecting but not rounded volutions, 

 ashy grey, yellowish (or rarely dark purplish brown) 

 always more or less streaked with fine obscure undulated 

 longitudinal lines, and striated closely delicately and 

 spirally ; apex small but not taper ; suture deep ; body 

 whorl angulated at its lower edge, the base slightly 

 rounded, the umbilicus small and distinct, i. Devon 

 and Dorset. 



T. PERFORATES. Smith in Wern. Tr. 8. p. 99. t. 

 l.f. 3,4. Subconic, strong, greenish ash with fine 

 obliquely longitudinal reddish brown lines under a thick 



