90 Bulletin 9 383 



Explanation of Plate 8. 



(14) 



Page. 



Fig. I. Barbatia cuciiUoides Q,ox\.. vdi^ 47, 339 



la. The same, exterior. 



2. TrigoJiarca pulchra CyQ-hh , v^r 48, 340 



2a. The same, interior. 



3. Ciicullcsa gigantea Con. , v^.r 49, 341 



3a. The same, showing hinge. 



4. C. giga7ttea Con., v3.r. Left valve " " 



5. Pectunciihis idoneus Con. , var " " 



5a. The same, interior. 



6. P. ido7ieus Q,on., var " " 



7. Nucula ovula Lea 50, 343 



8. Leda elongatoidea Aid " " 



9. L. elongatoidea Aid., var " " 



10. Leda. coipidentoides 51. 343 



1 1 . Leda corpulentoides " " 



1 2 . Leda marieana Aid " " 



1 3. Leda protexta Con 52 , 344 



14. Leda parva Rogers 53, 345 



15. Yoldia aldrichiana Har " " 



Engraved by the Electro Light Engrav- 

 ing Company, New York. 



