PLATE CXXXII. 



The Pholas Candida is rather a scarce species, and differs from P. 

 Dactylus (hians of Dr. Solander) in not being above one fourth of its 

 size : of a more oval shape, and having both ends equally rounded ; 

 in other respects it resembles it. Da Costa seems to entertain some 

 doubt whether it may not be really a variety rn growth, than a dis- 

 tinct species from Dactylus, It is foumj on the same coasts as the 

 latter. 



