392 SEQUENCE OF THE GENERA. 
Psammotea, 60, 346 
Tellina, 61, 346 
Tellinides, 73, 348 
Corbis, 74, 348 
Lucina, 75, 348 
Donax, 79, 348 
Capsa, 86, 349 
Crassina, 87, 350 
Cyclas, 89, 350 
Cyrena, 92, 350 
Cyrenoida, 351 
Galathea, 94, 853 
Cyprina, 95, 353 
Cytherea, 96, 353 
Artemis, 106, 356 
Venus, 109, 357 
Venericardia, 129 
Cardium, 129, 363 
Cardita, 144, 367 
Cypricardia, 149, 369 
Tsocardia, 150, 370 
Cardilia, 151 
Cucullea, 151 
Arca, 151, 371 
Pectunculus, 162, 375 
Nucula, 167, 376 
Trigonia, 172, 378 
Castalia, 173, 378 
Unio, 173, 378 
Hyria, 214, 387 
Anodonta, 215, 387 


Mycetopus, 224 
Iridina, 225 
Chama, 226, 387 
Cleidotherus, 227, 387 
Ktheria, 230 
Tridacna, 231, 387 
Hippopus, 232 
Modiola, 232, 887 
Mytilus, 243, 388 
Mytilimeria, 243 
Pinna, 251, 388 
Crenatula, 256, 388 
Perna, 257, 388 
Malleus, 260, 388 
Avicula, 261, 888 
Meleagrina, 264, 388 
Pedum, 265 
Lima, 265, 389 
Pecten, 268, 389 
Hinnites, 287 
Plicatula, 288, 889 
Spondylus, 289, 389 
Ostraea, 295, 389 
Vulsella, 310, 389 
Placuna, 311, 389 
Anomia, 312, 3889 
Crania, 316 
Discina (= Orbicula), 317, 389 
Thecidium, 318 
Terebratula, 319, 389 
Lingula, 333, 389 
