TABLE DES MATIÈRES. 629 



Ordre IV. Nucleobranchiata 352 



Fam. 1. Firolidœ. — Firohi, Carinaiia, Cardiapoda 354 



Fam. IL Allautidœ. — Atlanta, Porcellia, Bcllerophon, Cyrtolites, 



Maclurea 355 



Classe III. Ptéropodes 358 



Section A. Tiikcososiata 360 



Fam. I. Iltjalcidœ. — Hyalea, Cleodora, Cuvieria, Theca, Ptero- 



theca, Conularia, Eurybia, Cymbulia, Tiedemannia 300 



Fam. II. Linidcinidce. — Limacina, Spirialis, Clieletropis, Macgil- 



livrayia 365 



Section B. Gymnosomata 365 



Fam. III. Cliidœ. — Clio, Pneumodermon. Pelagia, Cymodocea. . 565 



CHAPITRE III 



Classe IV. Brachiopodes 567 



Fam. I. Terebratulidce. — Terebratula, Terebratella, Argiope, The- 



cidium, Stringocephalus 375 



Fam. II. Spiriferidœ. — Spirifera, Athyris, Retzia, Uncites. . . . 584 



Fam. III. Bhynchonellidœ. — Rbynchonella, Pentamerus, Atrypa. 588 



Fam. IV. Orthidœ. — Orthis, Strophomena, Davidsonia, Çalceola. 392 



Fam. V. Productidœ. — Produclus, Strophalosia, Chonetes, . 396 



Fam. VI. Craniadœ. — Craiiia 399 



Fam. VII. Discinidce. — Discina, Siphonotreta 40i 



Fam. VIII. JÂnguUdce. — Lingula, Obolus 405 



CHAPITRE IV 



Classe V. Lamellibeanches 406 



Section A. Asiphomda 420 



Fam, I. Ostreidœ. — Ostrea, Anomia, Placuna, Pecten, Lima, 



Spondylus, Plicatula 420 



Fam. II. Aviculidœ. — Avicula, Posidonomya, Aviculopecten, Ger- 



■villia, Perna, Inoceramus, Pinna 428 



Fam. III. Mytilidœ. — Mytilus, Myalina, Modiola, Hippomya, Dreis- 



sena 434 



Fam. IV. Arcadce. — Arca, Cucullœa, Pectunculus, Limopsis, 



Nuciila, Isoarca, Leda, Solenella, Solemya 458 



