16 MANUAL OF THE MOLLUSCA. 



PLATE XVI. 



Ostreida. 



PAGE 



1. Ostrea cliluviana, Gmelin. %. Chalk-marl, Brit 254 



2. (Exogyrd) conica, Sby. f. U. Green-sand, Wilts 255 



3. Anomia Achseus, Gray. . Kurach.ee, Scinde 255 



4 Placunoima macroschisma, Desh. ^-. California 255 



5. Placuna sella, Gm. sp. . China 256 



6. placenta, L. (young.) N.Australia 256 



7. Carol ia placunoides, Cantr. (hinge.) Tertiary, Egypt 256 



8. Pecten plica, L. f. China 258 



y. (Hemi-pecteri) Forbesianus, Ad. f. Sooloo Sea, 14 fms. ... 258 



10. (Hinnites) pusio, Pen. f. Brit 258 



11. Lima squamosa, Lam. i. China , 258 



12. (Plagiostoma) cardiiformis, Sby. Bath Oolite, Brit 25 



1 3 . (Limatuld) suh-auriculata, Mont. Brit 258 



14. (Limeea) strigilata, Brocchi sp. Pliocene, Italy 258 



15. Spondylus princeps, Gmel. |-. Sooloo Sea 259 



16. (Pedum) spondyloides, Gml. . Red Sea 259 



17- Plicatula cristata, Lam. |. W.Indies 259 



Avicullda. 



18. Avicula hirundo, L. |. Medit 260 



19. (Meleagrina) margaritifera, L. sp. |. Ceylon 260 



20. (Malleus) vulgaris, Lam. i. China 261 



21.- (Fttfo?//a)Ungdata,Lam. . Red Sea 261 



22. Posidonomya Becheri, Bronn. Garb. Hesse, Brit 262 



23. Pinna squamosa, Lam. T V- Medit 263 



24. Crenatula viridis, Lam. . Chinese Seas 263 



a,a' adductor impressions. 

 p, pedal muscles. 

 g, suspensors of the gills. 

 b t byssal foramen or notch. 



