PLATE XL. 



Fig. 1. Peden phrygium Dall ; 36.5. Part L, page 217. 

 " 2. Cuf'pidaria microrhina Dall, dorsal view of right valve, natural size ; 



Part L, page 295. Part II., page 440. 

 ** 3. The same, side view. 



** 4. Cardium (Fulvia "i) peramabilis Dsill ] ^. Part I., page 269. 

 ** 5. 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. Mdocardia AgassiziiViSiW', 22.0. Part I., page 271. 

 *' 8. Tindaria amabilisT)aL\\ ] 1^.0. Part I., page 255. Part II., page 438. 



