2i^ [Assembly 



Page. 



Description of species 269-518 



Modiomorpha 269-293 



Goniophora 293-306 



MicrodoQ (Oypricardclla) ' 307-313 



Nucula 313-324 



Nuculites 324-328 



Leda 329-332 



Palffioneilo 333-349 



Macrodon 349-351 



Ptychodesma 352-354 



Nyassa 354-358 



Grammysia 358-384 



Eutbydesma 385-386 



Edmondia 386-393 



Sphenotus 394-406 



Spathella 407-408 



Conocardiiim 409-415 



Paneuka 416-425 



Glyptocardia 426-427 



Prtecardium 427 



Paracardium 428 



Pararca , 429-433 



Cardiopsis 433 



Lunulicardium 433-439 



Paracyclas 440-446 



Schizodus 447-459 



Prothyris 460-462 



Solemya 463 



Tellinopsis 464-465 



Cimitaria 465-469 



Pholadella 469-472 



Phthonia 473-478 



Orthonota 478-482 



Solen, s. g. Palseosolen 483 



Cypricardinia 484-487 



Palffianatina 488-491 



Prorhynchus 492-494 



Glossites 494-502 



Elymella 502-505 



Sphenotus? 506 



Grammysia ? 507 



Sanguinolites 508-509 



Palfeomya 509-510 



Promacrns 510 



Cytherodon 511-512 



Clinopistha 512-513 



Modiella 514 



Megambonia 515 



Amnigenia 516-518 



Tabular Arrangement of Genera and Species 519-540 



Alphabetical Arrangement of Genera and Species. . . 541-552 



Index 553-561 



Plates and Explanations xxxiv-lxxx and xciii-xcvi 



