105 



OSTREA solitaria. 



TAB. CCCCLXVlll.-^^^. 1. 



Spec. Char. Obovate, plaited; one valve 

 flatish ; plaits deep, sharp, rugged and 

 branched ; beaks short. 



A. FLATTER, broader, and less curved shell than O. 

 gregarea, (tab. 111.) it has also fewer plaits, and is not 

 so commonly found in groups : it is sometimes curved, 

 as one of the figures shews, but in that case it becomes 

 broader rather than longer: 



We are indebted for the use of the specimens figured 

 to Miss Benett, who obtained them of a Dealer at Wey- 

 mouth, near which place they were picked up. 



OSTREA macroptera. 



TAB. CCCCLXVIlI.~-j%5. 2 and 3. 



Spec. Char. Falciform depressed, with a large 

 rectangular ear or wing within the curve; 

 plaited ; margin deeply toothed ; one valve 

 attached by a great part of its surface. 



J. HE large wing-like lobe within the curved side of this 

 Oyster, gives it a very striking appearance. The valves 

 are nearly flat except towards the margin, where they 

 are very deeply plaited, and the edges of course largely 



