226 THE CEPHALOPHORA. $ 201. 



Family : Potamophila. 

 Genera : Rlssoa, Paludina, Ainpullaria, Ceratodes, Valvata. 



SUB-ORDER V. PULMONATA. 



Family : Amphipneusta. 



Genus : Onchidium. 



Family : Lymnaeacea. 

 Genera : Lymnaeus, Planorbis, Amphipeplea, Physa. 



Family : Helicina. 

 Genera : Helix, Caracolla, Succinea, Bulimus, Achatina, Clausilia. 



Family : Limacina. 

 Genera : Lirnax, Arion, Testacella, Parmacella. 



Family : Auriculacea. 

 Genus : Auricula. 



Family : Operculata. 

 Genus: Cyclostmna. 



BIBLIOGRAPHY. 



Cuvier. Memoires pour servir a I'Histoire et a rAnatoraie des Mollusques. 

 Paris 1817. A collection of monographs upon Clio, Hyalea, Pneumoder- 

 mon, Tritonia, Doris, Scyllaea, Aeolis, Glaucus, Thetis, Phyllidia, Pleuro- 

 hranchus, Aplysia, Bidlaea, Bulla, Limax, Helix, Dolabella, Testacella, 

 Parmacella, Onchidium., Lyrnnaeus, Planorbis, Phasianella, Janthina, 

 Paludina, Turbo, Buccinum, Sigaretus, Haliotis, Fissurella, Emarginula, 

 Patella, Chiton, and Carinaria. 3Iost of these appeared separately in the 

 Ann. du Museum d'llist. Naturelle. 



Meckel. Eeitriige zur vergleichenden Anatomie. Bd. I. Hft. 1, 2, 

 Deutsches Archiv fiir die Physiologie, Bd. VIII. p. 190, and Archiv fiir 

 die Anatomie und Physiologie, 1826, p. 13, containing anatomical details 

 upon Thetis, Doris, Diphyllidia, &c. 



Wohnlich. De Helice pomatia. Wirceburg, 1813. 



Leue. De Pleurobranchaea. Diss. Halae, 1813. 



Kosse. De Pteropoduni ordinc. Diss. Halae, 1813. 



Feider. De Haliotidum structura. Diss. Halae, 1814. 



Stiehel. Lymnaei stagnalis anatome. Diss. Getting. 1815. 



Deshayes. Anatomie du genre Dentale, in the Mem. de la Soc. d'Hist. 

 Nat. de Paris, II. 1825. 



Rang. Observations aur le genre Atlante. Ibid. III. 1827, p. 372. 

 An Abstract of both treatises may be found in the Isis. 1832, p. 462, 471. 



