307 



Ing it a pretty cancellated appearance, particularly on 

 the lower part of the body whirl : apex not \ery pointed ; 

 aperture fub-orbicular, angulated at the upper part, and 

 marginated. Length two-tenths of an inch ; breadth not 

 quite fo much. It is rather a flrong fliell for its fize; 

 when recent is fub-pellucid white : dead fliells are opaque- 

 Is a very rare fpecies, and when perfeft, is a mofl elegant 

 and curious fliell. 



Da Costa is the only author who has given it as an 

 EngliJJi fpecies : he received it from Cornwall. We have 

 alfo found it in fand from Falmouth harbour, and on the 

 coaft of South Devon; but very rare in both places. 



LiNNi£us fays it is a Mediterranean fliell. 



14. 

 T. with a fmooth, conic fhell, with fix rounded voIu-Vinct us. 

 tions, of a fub-pellucid, rufous horn-colour: the lower 

 fpire marked with four, and fometimes five, purplilh- 

 brown, or chefnut coloured bands, with a broad fpace 

 between the three lower and the upper ones ; in the fecond 

 and third fpires are only two bands : the apex is fmall, 

 but not very pointed : aperture fub-orbicular ; outer lip 

 very thin ; inner lip thick, white, furniflied with a nar- 

 row channel, which terniinates in a fmall umbilicus. 

 Length rather more than three-eighths of an inch. 



This fpecies is fubjeft to fome variety: fometimes it 



R r 2 is 



