TABLE DES MATIÈRES. 



Sous-ordre II. — Tectibranchiata 548 



A. Cephalaspidea 550 



Fam. XXV. Adœonidœ. — Aclœon, Volvaria, Fortisia, Aciœonina, 



Cylindrites, Actîeonella 551 



Fam. XXVI. Tornalinidœ. — Tornatina, Volvula 555 



Fam. XXVII. Scaphandridœ. — Scapliander, Sabatia, Smarag- 



dinella, Atys, Cylichna, Amphispliyra 556 



Fam. XXVIII. BulHdw. — Bulla, Acera, Cylindrobulla, Volvatella. 558 



Fam. XXIX. Aplmtridœ. — Aplustrum 560 



Fam. XXX. RingicuUdse . — Ringicula, Avellana 561 



Fam. XXXI. Castro pteridie. — Gastropleroii 562 



Fam. XXXII. Philinklœ. — Pliiline, Clielinodura, Plianerophthal- 



mus, Cryptophthalmus 563 



Fam. XXXIII. Doridiidœ. — Doridium. 565 



B. Anaspidea 566 



Fam. XXXIV. Aplysiidœ. — Aplysia, Dolabella, Dolabrifer, Xolar- 



chus, Phyllaplysia 566 



Fam. XXXV. Oxynoeidœ. — Oxynoë, Lobiger .%9 



C. Notaspidea 571 



Fam. XXXVI. Plcurohranchidie . — l'ieurobranchus, Ilaliotinella, 



Pleurobrancbœa, Neda 571 



Fam. XXXVII. Runcinidiv. — Runcina 575 



Fam. XXXVIII. Umbrellidœ. — Umbrella, Tylodina 574 



ORDRE DES NUCLEOBRANCHIATA 575 



Fam. I. Pterotracheîda'. — Pterotrachea, Firoloida, Cardiapoda, 



Carinaria 578 



Fam. II. Atlantidiv. — Atlanta, Oxygyrus 581 



ORDRE DES PROSOBRANCIIIATA 582 



Sous-ordre I. — Pecti.mbra>chiata 584 



A. ToxoGLossA 586 



Fam. I. Terchridœ. — Terebra 586 



Fam. II. Conidiv. — Conus, Couorbis, Genolia, Pusionella, Colum- 

 barium, Clavalula, Surcula, Pleurotoma, Borsonia, Drillia, Bêla, 



Maagilia, Halia 587 



Fam. III. Canccllariida\ — Cancellaria 594 



B. RlIACHlGLOSSA 596 



Fam. IV. Olividw. — Oliva, Olivancillaria, Olivella, Ancilla . . . 597 



Fam. V. Harpidœ. — Ilarpa 001 



Fam. VI. Marginellidœ. — Margineila, Persicula, Pachyballiroii, 



Cystiscus, Microvoluta 601 



Fam. VII. Volulidiv. — Cryptochorda, Zidona, Provocator, \Vy- 

 villea, Yetus, Volula, Volutilithes, Volulolyria, Lyria, Eiuela, 



Volulomitra 604 



Fam. VIII. Miiridiv. — Mitra, Turricula, Cylindromitra, Imbri- 



caria 010 



Fam. IX. Fasciolarndiv. — Fusus, Clavella, Fasciolaria, Lalirus. 014 

 Fam. X. TmhineUidœ. — Turbineila, Cynodonta, Tudicla, Strep- 

 sidura, Fulgur, Welongena, Liostoina, Seiuifusus, Ptycbatractus, 



Meyeria 018 



