ATTRICULID2E. 3 



the genus Auricula to the second section of his u Colimaces" 

 with two tentacles (including the Conovidi, which he had for- 

 merly separated from it), which almost exactly corresponds with 

 what is now called the family of Auriculidce. 



Gray established in 1824 a family of Pulmonobranchiata with 

 the name Auricidada, which was adopted by Thompson (1840). 



Blainville gives (1824) the Lamarckian name Auricidacea to 

 his second family of Puhnobranchiata, containing the genera 

 Pedipes (with the subgenera Tornatella, Pedipes, Conovidus), 

 Auricula, Pyramidella. The name and position of the family are 

 adopted (1842) by G. B. Sowerby, jun. 



Latreille's (1825) third family of Pulmonata, Limnocochlides, 

 comprises the genera Carychium, Scarabus, Auricula, Conovidus, 

 Cassidulus, Lymncea, Physa, Planorbis, Ancylus. 



Risso (1826) gives the name of " les Aiiricidicles " to a family 

 of Adelobranchia, of which the genera are Auricula, Pyrami- 

 della, Ancylus. 



Menke (1828) was the first who proposed, under the name of 

 Auriculacece, a family of Amphibia, perfectly cleared of any hete- 

 rogeneous genera. This family, the name of which was (1830) 

 changed into Auricidacea, is composed of the genera Scarabus, 

 Auricula, Carychium. 



Rang (1829) follows Ferussac, but ejects the genera of Pli- 

 cacea, and enumerates the genera Carychium, Auricula, Pedipes, 

 Scarabus. The same method Ls adopted (1838) by Potiez and 

 Michaud. 



Deshayes (1830) designates with the name of Auricidacea the 

 fifth family of Pulmonobranchiata. Genera: Auricula, Scarabus, 

 Pedipes. 



Lowe (1830) ascribes the genera Melampus and Pedipes to 

 the family Plicacea of Lamarck. 



De Cristofori and Jan (1832) give the name of Auriculoidea 

 to their unique family of Gehydrobia, with the genera Cary- 

 chium and Auricula. The same name is used by Fitzinger 

 (1833) for the genera Carychium and Acme. 



Beck (1837) institutes with the name of Auriculidea a family 

 of Gasteropoda, to which he refers the genera Acme, Polydonta, 

 Auricula, Carychium, Pythia, Pedipes, Cassidulus, Melampus 

 (subgenera Conovidus, Melampus, Lirator), Ophicardelus. 



Anton (1839) admits the Blainvillean name for a family of 

 Gasteropoda, in which he includes Scarabus, Pyramidella and 

 Auricula (subgenera Carychium, Auricula, Cassidula, Conorula). 



Swainson (1840) places the genus Melampus (which is per- 

 fectly congruous with the family of Auriculidce, inasmuch as it 

 comprises the subgenera Geovula, Pedipes, Scarabus, Melampus, 

 Ehodostoma) among the Turbince, a subfamily of Turbidce. 



b2 



