H2 



VOLVARIA acutiuscula. 

 TAB. CCCCLXXXVII. 



Spec. Char. Nearly cylindrical^ with a pointed 

 apex ; spire concealed ; striae numerous, com- 

 posed of squarish punctums ; plaits upon the 

 columella variable. 



Syn. V. acutiuscula, G. B. Sowerbj/'s Genera of 

 Shells (Genus Volvaria, jig. S). 



Well distinguished from both the French species by 

 the apertui-e being so prolonged beyond the apex of the 

 spire as to conceal it within a small pit ; it is also less 

 cylindrical, being a little contracted towards both ex- 

 tremities ; the plaits upon the columella are usually 

 about four, but often irregular in size as well as variable 

 in number. 



This pretty shell has hitherto only been found in Bar- 

 ton Cliff: we are indebted to several friends for speci- 

 mens : it does not appear to be rare. It is rendered 

 more interesting by the reflection, that it is very nearly, 

 but not precisely, like its congeners found near Paris : 

 similar facts, we have reason to believe, will prove of 

 more frequent occurrence than has been suspected. 



