32 PALUDINID^. 



Sub-Genus TULOSTOMA, Haldeman. 

 3Ion. Lymn. Snp. 2, 1841, type P.magnijica, Conrad. 



35. Paludina (Tulostoma) magniflca. 



Paludina luagnifica, Conrad, New freshivater shells, U. States, June 1834, 

 Alabama Rv.; = P. himonilifera. Lea, Trans. Amer, Philos. Soc, 

 August 1834 {read in 1832). 



2 Alabama ; ex c. Dr. H. Dobrn. 



Sub-Genus CAMPELOMA, Rafinesque. 



Journ. de Physique, Sfc, Vol. 88, 1819, type C. crassula, Eaf., from Ohio j 

 = Melantho, Bowditch, Elem. Conch. 1822, type P. decisa. Say. 



36. Paludina (Campeloma) decisa. 



Limnaea decisa. Say, Nicholson's Enc. I, 1817, [sine Hah.'] ; Delaivare Rv. 

 Jide Binney. 



7 Indiana; ex c. Dr. T. Oldbam. 

 16 Pennsylvania ; coll. Rev. E. R. Beadle. 



4 Massacbusetts and Ohio ; coll. Prof. E. C. Stearns. 



5 New York; coll. Dr. W. Newcomb and ex c. Madras Museum. 



A sinistral variety lias been recorded. 



37. Paludina (Campeloma) Integra. 



Paludina Integra, Say, Journ. Aead. Nat. 8ci. Philad. II, 1821, Missouri ; 

 fide Binney = P. decisa, var. 



20 New York ; coll. Dr. W. Newcomb and Rev. E. R. Beadle. 



38. Paludina (Campeloma) ponderosa. 



Paludina ponderosa. Say, Journ. Acad. Set. Philad. II, 1821, Ohio. 



4 Alabama ; coll. Rev. E. R. Beadle. 

 12 Indiana ; ex c. Dr. T. Oldbam. 



39. Paludina (Campeloma) genicula. 



Paludina genicula, Conrad, New freshivater shells, U. States, 1834, " Flint 

 Rv., Georgia; " fide Binney = P. decisa, var. 



2 Georgia; ex c. Dr. T. Oldbam. 



40. Paludina (Campeloma) rufa. 



Paludina rufa, Haldeman, Mon. Lymn. Ill, 1841— ; fide Binney = P. 

 decisa, Say, var. 



2 Erie Canal ; coll. Prof. W. Newcomb. 



