Class VI. CARDIUM. COCKLE. '^M', 191 



Mont. Test. Br. Sup. 30. i6. fascia- 



7 V TUM. 



* C. with an orbicular shell, pellucid ; with 

 about twenty-seven smooth, glossy, flattened 

 ribs ; color rufous white, with a few brown 

 stripes ; length three quarters of an inch, breadth 

 somewhat more. • 



On the Cornish and Devonshire coasts. 



