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Page 



ovum, Meretrix • 354 



Pholas .* 7 



owenii, Bonax 81 



oxygonum, Cardium 138, 363 



pacifica, Area 155, 371 



Byssoarca 155 



Chama 229 



Psammobia . 60, 346 



Venus 98 



pacilus, Anomia 314 



paliens, Area 163, 375 



Pectunculus 163, 375 



pallescens, Tellina . 62 



paliatus, Unio- . 200 



pallida, Avicula 264 



pallidum, Amphidesma ..... 44, 341 



pallium, Ostrea 283 



Pecten , . 283 



Pectunculus '. . 166, 375 



palmulatus, Teredo . ..... 4, 335 



palustris, Cyclas ..... ... 89 



panamense, Cardium ..... .140, 363 



Pandora arcuata 49 



brevifrons . ■. . 49 



ceylonica 50, 345 



depressa . . * 49, 345 



discors ..... 49 



flexuosa 49, 345 



glacialis 49, 345 



nasuta 49 



oblonga . . . . . . . . . . 49, 345 



obtusa • • 48 



radiata 50 



rostrata 48 



striata 50,338, 339 



trilineata 49, 345 



unguiculus 49, 345 



