209 



thing to find them of an inch in length, and three-quarters 

 of an inch broad. 



We have alfo found it of an inferior fize on the oppofite 

 fhores in Wales, particularly about Laugharnc : rarely in 

 Cornwall, South Devon, and DorfetJJiire, about Wcymoutlu 

 and on Studland beach, between Swanage and Poole. It 

 is not uncommon on fome parts of the coaft of Kent, at 

 Sandwich, and Whitjiable bay, from whence we have re- 

 ceived it with the animal, but not large. 



The inhabitants of many of the BullcE are larger than 

 their fliells, fo that they cannot wholly recede within them : 

 in this and the two following fpecies the animal has all the 

 appearance of being truly mollufcous, enclofing the fhell 

 fo entirely, that no part of it is to be feen. 



Martini has badly figured feveral views of the animal, 

 feparate and attached to the (hell, in the table above * »*. 



quoted; with figures of the teftaceous plates found within 

 the body, which conflitute the flomach or gizzard. 



Pl ANGUS has alfo defcribed the animal, and has given 

 a figure of the fhell. Appendix, Tab. xi. fig. F, G. 



The animal is rather a fhapelefs mafs, of a fub-oval 

 form; pellucid white, with numerous minute, opaque 

 fpecks : no vifible eyes, or tentacula ; the anterior end 

 rounded, but capable of variation: a fiiield, with a mem- 



E e branaceou$ 



