XXXI 



Parasltica, 120 (0. De- 

 pressa Philippi, t. 6, 

 /. 3,)/ 108. 

 ANOMIA. 



Electrica, 120. 



Ephippium, 121. 



Cepa, 121. 



Squamula, 122. 



Undulata, 122. 



Punctata, 122. 



Cylindrica^ 123. 



Striolata, 123. 



Aculeata, 123, f, 73. 



Fornicata, 124. 



Tubularis, 124. 



Coronata, 124. 



DISCINA. 

 Ostreoides, 125. 



CRANIA. 



Rostrata, 125. 



TEREBRATULA. 



Cranium, 126. 

 Ps'ittacea, 127. 

 ^writo, 127. 



CHITON. 



Fascicularis, 128. 

 Crinitus, 25 1 . 

 Margmatus, 128. 

 Cinereus, 128. 



129. 

 i, 129,/. 29. 



, 129. 

 Lcevigatus, 129. 

 Hanleyi, 263, /. 57. 

 Pictus, 264, /. 56. 



PATELLA. 



Vulgata, 130. 

 Athletica,264,f. 108. 



ACMMA. ESCHOLTZ. 

 (Patella Pectinata, 139). 



British writers as found on our shores, appears to be 

 nothing more than that variety of the common oyster, of 

 which the sides are expanded and the inner margin den- 

 ticulated near the umbo. 



