PLATE XL. 



Pecten phrygium Dall ; 36.5. Part I., page 217. 



Cuspidaria microrhina Dall, dorsal view of right valve, natural size ; 



Part I., page 295. Part II., page 440. 

 The same, side view. 



Curdium (Fulvia ?) peramabilis Dall ; f. Part I., page 269. 

 Callocardia ( Vesicomya) venusta Dall ; 19.0. Part I., page 274. 



Part II., page 439. 



6. Amusium Dalli E. A. Smith, natural size. Part I., page 209. Part 



II., page 434. 



7. Meiocardia Agassizii Dall ; 22.0. Part I., page 271. 



8. Tindaria amdbilisDaW ; 15.0. Part I., page 255. Part II., page 438. 



