MANUAL OF THE MOLLUSCA. 17 

 PLATE XVII. 



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

 Aviculidcz. 



PAGE 



1. Gervillia anceps, Desli. ^-. Neocomian; Brit 262 



2. Perna ephippium, L. . W.Indies 263 



3. Inoceramus sulcatus, Park. f. Gault, Brit 263 



Mytilida. 



4. My tilus smaragdinus, Chemn. ^. India 264* 



5. Modiola tulipa, Lam. i. Brit 265 



6. pelagica, Forbes. . S.Atlantic 266 



7. lithophaga, L. \. Medit 265 



8. Crenella discors, L. Brit 266 



9. Dreissena polymorpha, Pallas, f. Brit 266 



Arcadce. 



10. Area granosa, L. f. Australia , 267 



11. pexata, Say. . S. Carolina 267 



12. (Bysso-arca) Note, L. f. Medit 267 



13. zebra, Sw. . Australia 267 



14. Cucullsea concamerata, Martini. |. India 268 



15. Macrodon Hirsonensis, D'Arch. sp. ^. Bath Oolite, Brit 268 



16.*Pectimculus pectiniformis, Lam. f. India 268 



17.*Lirnopsis aurita, Broc. sp. Crag, Suffolk 268 



18. Nucula Cobboldise, Sby f . Crag, Norwich 269 



19.*Nuculina miliaris, Desh. ^-. Eocene, Paris 269 



20.*Leda caudata, Donov. Brit 260 



21 .* ( Toldia] myalis, Couthouy. f . Crag, Norwich 270 



22.*Solenella Norrisii, G. Sby. f. Valparaiso 270 



23. ornata, G. Sby. sp. -|. Miocene, Patagonia 270 



Trigoniadte. 



24.*Trigonia costata, Park. \. Oolite, Brit 271 



25. Myophoria decussata, Miinst. sp. Trias, Tyrol 272 



26. Verticordia cardiiformis, Wood. f. Crag, Suffolk 304 



