Class VI. MUREX. ROCK-SHELL. 287 



Lin. Tr. vili. 150. 25. reticu- 



LATUS. 



* M. with a pyramidal shell, reticulated with 

 rows of tubercles ; canal scarcely discernible ; 

 minute ; inhabits the sea. 



Found from Kent to Cornwall, and on the 

 coast of south Wales. 



Lin.Tr. win. 150. Mont. Test. Br. Q'JO. id. 26. tuber- 



Sup.UQ. CULARIS. 



* M. with a pyramidal shell, having nine or ten 

 tuberculated volutions, divided by a faint line 

 or suture ; minute ; inhabits the sea. 



Sparingly found at the mouth of the Aim, 



Lin. Tr. viii. 151. Mont. Test. Br. 271. 27. adver= 



sus. 



* M. with a pyramidal shell; volutions reversed, 

 marked with a triple row of tubercles ; the mid- 

 dle one smallest ; length about half an inch. 



Cornish and Devonshire coasts. 



