TABLE DES MATIÈRES. 



Fam. XLIII. Hijdrohiiihv. — Baicalia, Pomatiopsis, Hydrobia, Bithi- 

 nella, Micropyrgus, Pomataclis, Pyrgula, Bugesia, Syrnolopsis, 

 Tryonia, Tricula, Emmericia, Prososthenia, Benedictia, Litlio- 

 glyphus, Tanganyicia, Limnotrochus, JuUienia, Paeliydrobia, 

 llemistomia, Potamopyrgus, Liltorinida, Amnicola, Fluininicola, 



Bitliinia, Fossarulus, Stenotliyra, Briartia, Nystia 72Ô 



Fam. XLIV. Paludinida'. — Paludina, Tylopoma, Lioplax .... 752 



Fam. XLV. ValvatUlr. — Valvata, Orygoceras 734 



Fam. XLVI. Ampullarudic. — Ampullaria 756 



Fam. XLVII. Assimhicidw . — Assimiiiea 758 



Fam. XL VIII. Cijclophorid,v. — Pomatias, Diplommatina, Opistho- 

 stoma, Pupina, Ilybocystis, Cataulus,Coptochiliis, Megalomastoma, 

 AlyCiTus. Craspedopoma, Leptopoma, Lagocliilus, Cyclopborus, 

 Aperosloma, Cyalhopoma, Pterocyclus, Cyclosurus, Stropbo- 



stoma 750 



Fam. XLIX. Cyclostomatidiv. — (^yclostoma, Cyclotopsis, Clioano- 



poma, Cistula, Omphalotropis, Ilainesia, Acroptychia 74(i 



Fam. L. Aciculid:v. — Acicula, Berellaia, Albertisia 749 



Fam. LI. Truncalellidw. — Truncatella, Geomelania, Cecina. . . 75i 



Fam. LU. Hipponycid;r. — Ilipponyx, Mitrularia 75'"2 



Fam. LUI. Capulid;i\ — Capulus, Platyceras , Diaphorostoma , 



Addisonia, Crucibulum, Crepidula, Calyptra^a 754 



Fam. LIV. Xe?iophorid;e. — Xeiiopliora 751* 



Fam, LV. Narickhe. — Narica 761 



Fam. LVI. Lamellariidw. — Lamellaria, Velutina, Marsenina, 



Oncidiopsis, (laledoiiiella 762 



Fam. LVll. Nfiticid.r. — Natica, Ampullina, Amaura, Desliayesia, 



Sigaretus, Plychostoma, Gyrodes, Tyclionia, Tylostoma 76 i 



Fam. LVIII. Oocoriilhidn'. — Oocorys 76U 



Fam. LIX. Subulitidn-. — Subulites, Fusispira, Euchrysallis . . . 770 



Fam. LX. Seguenziidiv. — Segiienzia 771 



Fam. LXI. AdeorbikLv. — Adeorbis, Stenotis, Megalomphalus, 



Tracliysma 772 



Fam. LXII. Choristidœ. — Ciioristes . . 775 



1). Ptenogi-oss.v 774 



Fam. LXIII. Janthinidœ. — Jantbina, Becluzia 774 



Fam. LXIV. Scalarikhe. — Scalaria, Crosseia, Eglisia, Elasmdiiema. 



Ilolopella, Aciis, Stilbe 776 



E. Gymnoglossa 77U 



Fam. LXV. Eulimklv. — Stilifer, Euliina, Scalenostomn, Niso, 



Iloplopteroii 780 



Fam. LXVI. Pijrainkldlkhr. — Pyramidella, Odostomia, Eulimella. 



Murcbisonieila, Turbonilla 784 



SoUS-ORDRE II. SCUTIBRANCIIIAT.V 790 



A. RnipiDOGLOssA " 792 



Fam. LXVII. ProserpinùLr. — Proserpina 795 



Fam. LXVin. HeUcinklœ. — Helicina, Eutrochatella, Stoastoma, 



Bourcieria, Dawsoniella 794 



Fam. LXIX. Hijdrocenkhv. — Hydrocena 798 



Fam. LXX. Nerilklœ. — Nerila, Xcritina, Neritodomus, Dejanira, 



Septaria, Pileolus 799 



