92 

 BULLA. 



LiGNAniA. Recent opportunity of examining the animal in feveral of 

 p. 205 < tliefe (hells while alive, has induced us to add Ibme remarks 

 to thofe already given in Vol. ii. of the Tranf actions of the 

 JJnnean Society. 



The animal is very large, of a cream colour, extending 

 greatly beyond tlie fliell : it confifts of tliree lobes, befides 

 that partobfcured by the fliell, which is comparatively fmall : 

 the front or fhield covers all the expofed anterior end, is 

 fomewhat rounded and fcalloped, but neither eyes nor ten- 

 tacida are vifible. The fujkntaculum is very large, projects 

 even with the anterior lobe or fliield, and extends on each 

 fide. refle6ling a little, but fcarcely covers any part of the 

 fliell ; in the front between thefe two parts the mouth is 

 concealed, of which the lips are black : befides the fmall 

 convoluted part of the body within the fliell, a membrane 

 extends towards the umbilicus. 



This apparently unformed mafs is moft remarkable for its 

 ftomach or gizzard, which has been fo perfe6lly defcribed 

 and figured in tlie work before mentioned, as to render it 

 unneceflary to enter into the particulars of its ftrudlure ; but 

 it may not be improper to remark, that we have more than 

 once found that very ftrong little fliell Mya inequivahis in the 

 paflage to tlie flomach, in the fame fituation, and probably 

 the fame fpecies defcribed by the writer in queftion ; but 

 thefe had no perforation fimilar to what is in that work de- 

 fcribed. 



