54 JOURNAL OF CONCHOLOGV, VOL. II, NO. 2, APRIL, I904. 



1810. Ampiillai-ius Montfort, Conch., ii., p. 242 \A. tirceus Brvig.]. 



181 1. Poiiiacea Perry, Conch., expl. pi. 28, [/'. maadata P.]. 

 1817. Conchylium Cuvier, Regne An., ii., p. 426, ex parte. 



1824. Marisa Gray, Phil. Mag., Ixiii., p. 276 [/I/, intermedia Gray]. 



1828. Ainpiillaria Guilding, Zool fotirn., iii., p. 536. 



1830. Marissa Menke, Synops., ed. ii., p. 49, in synonymy [not Marissa Walker, 



Ixpidoptera, 1854]. 

 1840. Marisca Gray, Syn. Brit. Mus-, pp. 59, 89 (err. typ.) [not Marisca Gistel, 



Aves, 1848]. 

 1842. Amphibola Sowerby, Conch. Man., ed. ii., p. 63 [not of Schumacher, 1817J. 

 1854. Po7mis\^. & h. Adams, Gen. Rec. Moll., i, p. 346 [not of Mus. Calon- 



nianum, 1797]. 

 1859. Poimis Chenu, Man. de Conchyl., i., p. 313. 

 1883. Poiuus Tryon, Struct, and Syst. Conch., ii., p. 276. 

 1885. Ainpiillaria Fischer, Man. de Conchyl., p. 757 \_A. urceus Miill.]. 



Section Ceratodes Guilding. 

 Type Planorbis cormi-arietis Lamarck, S. America. 

 1799. Planorbis Lamarck, Prodrome, p. 76, [not of (Geoffroy) Miiller, 1774]. 

 1801. Planorbis Lamarck, Systeme, p. 93. 



1828. Ce)-atodes Guilding, Zool.Journ., iii., p. 537 [sole ex H. cornu-arieiis Linne]. 

 1837. Ceratodes D'Orbigny, Voy. Amer. Mer. , p. 335. 

 1840. Ceratodes Swainson, Malac, p. 339. 

 1842. Ceradotes ?:OVfexhy, Conch. Man., ed. ii. , p. 204. 



1845. Ceratoides C2Lt\ow , Conch. Nom.. p. 193; in syn. 



1854. Marisa H. & A. Adams, Gen. Rec. Moll., i. , p. 347 [not of Gray, 1824]. 



1859. Marisa Chenu, Man. de Conchyl., i., p. 314. 



1883. Marisa Tryon, Struct, and Syst. Conch., ii., p. 277. 



1885. Marisa Fischer, Man. de Conchyl., p. 757. 



Section Limnopomiis Dall, nov. 

 Type Ainpiillaria columellaris Gould, 1848, Peru. 



Section Pomella Gray. 

 Type Ainpiillaria megastoina Sowerby, La Plata. 

 1847. Foiiiella Gray, Proc. Zool. Soc, p. 148 [type A. neritoides D'Orbigny, 1837 

 = A. megastot/ia Shy., 1825]. 



1853. Pomella H. & A. Adams, Gen. Rec. Moll., i., p. 348. 

 1859. Pomella Chenu, Man. de Conchyl., i. , p. 314. 



1883. Pomella Tryon, Struct, and Syst. Conch., ii. , p. 276. 

 1885. Pomella Fischer, Man. de Conchyl., p. 757. 



Subgenus Asolene D'Orbigny. 

 Type Helix plaice Maton, La Plata. 



1837. Asolene D'Orbigny, Voy. Amer. Mer., p. 364. 



1838. Asolena Troschel, Wiegm. Arch. f. Natnrg., 1838, ii., p. 279. 

 1840. Ampulloidea D'Orbigny, Voy. Amer. Mer., p. 379. 



1842. Ampulloides D'Orbigny, Moll. Cuba, ii, p. 2. 



1846. Asolena Herrmannsen, Index Gen. Malac, i. , pp. 45, 84. 

 1846. Asolen Agassiz, Nomencl. Index, p. 103. 



1854. Asolene H. & A. Adams, Gen. Rec. Moll., i., p. 349. 

 1859. Ampulloidea Chenu, Man. de Conchyl., i., p. 314. 

 1883. Asolene Tryon, Struct, and Syst. Conch., ii. , p. 276. 



1855. Asolene Fischer, Man. de Conchyl., p. 757. 



