EXPLANATION OF THE PLATES. 541 



PLATE XXIL 

 * The figures marked are left valves (interiors). 



Tellinida. 



^ Page 



1. Sanguinolaria livida, Lam. J. N". Australia i . . . . 483 



2. diphos, Chemn. \. Lidia 483 



3. orbiculata, Wood. |, Penang 483 



Solenidce. 



4. Solen siliqua, L. \. Brit 486 



6. Cultellus lacteus, Spengl. \. Tranquebar . . . , , 487 



6. {Cerati-solen) legumen, L. f . Brit 488 



7. {Machcera) politus, Wood, f . Lidia 488 



8. Solecurtus strigilatus, L. f . W. Africa 488 



9. CaribsBus, Lam. f . U. States .^ 488 



10. {Novaculina) Oangeticus, Bens. Calcutta 489 



MyacidcB. 



IL Thetis hyalina, Sby. sp. f. China 491 



12. Panopaea Americana, Conrad. \. Miocene, Maryland ..... 492 



13.*Saxicava rugosa, L. |. Brit. — Kamtschatka 501 



14. Glycimeris siliqua, Chemn. |. Arctic America 493 



Anatinidce. 

 15.*Pholadomya Candida, Sby. \. W. Indies 496 



16. Goniomya literata, Sby. \. Oolite, Brit 497 



17. Solemya togata, Poli sp. \. Medit 429 



