XlV CONTEN'TS. 



I'AGfE 

 Fam. lY. Arcadce. — Area, Cuculleea, Pectunculus, Limopsis, 



Nucula, Isoarca, Leda, Solenella, Solemya -. 424 



Fam. Y. Trigoniadce. — Trigonia, Myophoria, Axinus, Cur- 



tonotus, Pseudaxinus, Lyrodesma 430 



Fam. YI. TJ^iionidce. — Unio, Castalia, Anodon, Iridina, 



Mycetopus, ^theria, Miilleria 435 



Section B. Siphonida : Integro-palliaKa 436 



Fam. YII, CkamidcB. — Chama, Diceras, Eeqiiienia 437 



Fam. YIIl. HixoiyuritidcB. — Hippurites, Eadiolites, Capri 



:aeJLla, Ca'prina, Caprotina 440 



Fam. IX. Tridacnidcs. — Tridacna 451 



Fam. X. Cardiadce. — Cardium, Conocardium 453 



Fam.. XI. LucinidcB. — Lucina, Corbis, Tancredia, Diplo- 

 donta, Ungtilina, KeUia, Montacuta, Lepton, Galeomma 455 



Fam. XII. CycladidcB. — Cyclas, Cjorena, Cyrenoides 461 



Fam. XIII. CyprinidcB. — Cyprina, Cii'ce, Astarte, Gouldia, 

 Crassatella, Isocardia, Cypricardia, Plein-opliorus, Cardilia, 

 ]\Iegalodon, Pachydomus, Pachyrisma. Opis, Cardinia. 

 Myoconcha, Cardita, Yerticordia 463 



Section C. Siphonida ; Sinu-pallialia 472 



Fam. XIY. Veneridcg. — Yenus, Cytlierea, Meroe, Trigona, 



Artemis, Lucinopsis, Tapes, Yenerupis, Petricola, Glau- 



comya 472 



Fam. XY. Ilactridce. — Mactra, HarveUa, Gnathodon, Lu- 



traria, AnatineUa 477 



Fam. XArr. Tellinid(B. — TeUina, Gastrana, Capsula, Quen- 



stedtia, Psammobia, Sanguinolaria, Semele, Mesodesma, 



Ervilia, Donax, Galatea 479 



Fam. XYII. Solenid<s. — Solen, Cultellus, Solecm-tus 486 



Fam. XYIII. Myacidce.—lslY^, Corbula, NeEera, Tbetis, 



Panopsea, Glycimeris 489 



Fam. XIX. Anatinidoi. — Anatina, Eibeiria, Thracia, Pbola- 



domya, Myacites, Ceromya, Cardiom.orplia, Edmondia, 



Lyonsia, Pandora, Myadora, Myocbama, Cbamostrea .... 494 

 Fam. XX. GastroclKsnidce. — Gastrocbaina, Saxicava, Clara- 



gella, Aspergillum, Humpbreyia 500 



Fam. XXI. Fholalidce. — Pbolas, Pboladidea, Xylopbaga, 



Teredo 503 



Index 508 



