536 MAI^rAL OE THE MOLLUSC A. 



PLATE XYIT. 



* The figures marked are left valves" (interiors). 



Aviculidce. 



Page 



1. Ger-^-illia anceps, Desh.. i-. Neocomian, Brit 418 



2. Perna cphippium, L. \. "W. Indies 418 



3. Inoceramus sulcatus, Park, f . Ganlt, Brit 419 



Mytilida. 



4. Mytilus smaragdinus, Ckemn. \. India 420 



5. Modiola tulipa, Lam. \. Brit, 421 



6. pelagica, Forbes, h S. Atlantic 422 



7. lithophaga, L. i. Medit 422 



8. Crenella discors, L. Brit 422 



9. Dreissena polymorph.a, Pallas, f . Brit 422 



Arcadce. 



10. Area granosa, L. f . Australia 424 



11. pcxata, Say. h. S.Carolina 424 



12. {Bysso-arca) Nose, L. §. Medit 424 



13. zebra, Sw. J. Australia 424 



14. Cucullasa concamcrata, Martini, h. India 425 



15. Macrodon Hirsonensis, D'Arcli. sp. |. Bath Oolite, Brit. . . 425 



16. *Pectunculus pectiniformis, Lam. f. India 425 



l7.*Limopsis aurita, Broc. sp. Crag, Suffolk 426 



18. Nucula Cohholdige, Shy. ±. Crag, Norwich 426 



19.*Nuculina miliaris, Dash. *. Eocene, Paris 427 



20.*Leda caudata, Donov. Brit 427 



21.* {Toldia) myalis, Couthouy .§. Crag, Norwich 428 



22.*Solenella Norrisii, G. Shy. s.. Valparaiso 429 



23. ornata, G. Shy. sp. A. Miocene, Patagonia 429 



TrigoniadcB. 

 24.*Trigonia costata, Park. \. Oolite, Brit 430 



25. Myophoria dccussata, Mlinst. sp. Trias, Tj^rol 431 



26. Verticordia cardiiformis, Wood. A. Crag, Suffolk ........ 472 



