EXPLANATION OF TEE PLATES. 541 



PLATE XXIL 



* The figures marked are left valves (interiors). 



Tellinidct. 



Page 

 1. Sangumolaria li^ida, Lam. \, N. Australia * . . . . 483 



2. diplios, Chemn. \. India 483 



3, -^ ^ orbiculata, Wood. \. Penang 483 



Solenidce. 



4. Solen siliqua, L. ^. Brit 486 



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



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



7. {MachcBra) politus, "Wood, f . India 488 



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



9. -^ Caribaeus, Lam. f . U. States ,....,. .^ 488 



10. {NovacuKna) Crangeticus, Bens. Calcutta 489 



MyacidcB. 



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



12. Panopsea Americana, Conrad. ■§-. Miocene, Maryland .... 492 



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



14. Gi-lycimeris siliqua, Chemn. f . Arctic AmeriQa, 493 



Anatinid(B. 

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



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



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



