Class VI. TURBO. WREATH-SHELL. 309 



Lin. Tr. viii. 177. Mont. Test. Br. 300. t. 10. 47- trunca- 



TUS. 



/•7. 



* T. with a cylindric shell ; volutions flattish ; 

 abrupt at the apex ; length two tenths of an 

 inch, breadth one tenth of an inch ; inhabits 

 the sea. 



Southampton, Plymouth, JVeymouth, and 

 Poole. 



Lin. Ti. viii. 178. Mont. Test. Br. 300. t. 10. 48. subtrun- 



f. \. CATUS. 



* T.with a subcylindric shell, volutions round- 

 ish, diminishing in size towards the end; su- 

 ture rather deep ; length two tenths of an inch ; 

 inhabits the sea. 



Salcombe bay and Southampton. 



Lin. Syst. 1249. ^o- List. Conch, tab. 41- ^g* 4g. bidens. 



649. Gm. Lin. 36O9. maj. lident. 



Li7i. Tr. viii. I78. 



* T. with a pellucid shell ; volutions reversed ; 

 suture, somewhat crenated ; a double tooth 

 on the hind part of the aperture. Agrees 



