32 PALUDINIDE. 
Sub-Genus TULOSTOMA, Haldeman. 
Mon, Lymn. Sup. 2, 1841, type P. magnifica, Conrad. 
35. Paludina (Tulostoma) magnifica. 
Paludina magnifica, Conrad, New freshwater shells, U. States, Tune 1834, 
Alabama Rv.; = P. bimonilifera, Lea, Trans. Amer, Philos. Soc., 
August 1834 (read in 1832). 
2 Alabama; ex c. Dr. H. Dohrn. 
Sub-Genus CAMPELOM A, Rafinesque. 
Journ. de Physique, §c., Vol. 88, 1819, type C. crassula, Raf., from Ohio; 
= Melantho, Bowditch, Elem. Conch, 1822, type P. decisa, Say. 
36. Paludina (Campeloma) decisa. 
Limnza decisa, Say, Nicholson’s Ene. I, 1817, [sine Hab.]; Delaware Rv. 
fide Binney. 
7 Indiana; ex c. Dr. T. Oldham. 
16 Pennsylvania ; coll. Rev. E. R. Beadle. 
4, Massachusetts and Ohio; coll. Prof. E. C. Stearns. 
5 New York; coll. Dr. W. Newcomb and ex c. Madras Museum. 
A sinistral variety has been recorded. 
37. Paludina (Campeloma) integra. 
Paludina integra, Say, Journ. Aead. Nat. Sci. Philad. II, 1821, Missouri ; 
Jide 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, Sci. Philad. IT, 1821, Ohio. 
4 Alabama; coll. Rev. E. R. Beadle. 
12 Indiana; ex c. Dr. T. Oldham. 
39. Paludina (Campeloma) genicula. 
Paludina genicula, Conrad, New freshwater shells, U. States, 1834, “ Flint 
Rv., Georgia ;” fide Binney = P. decisa, var. 
2 Georgia; ex c, Dr. T, Oldham. 
40. Paludina (Campeloma) rufa. 
Paludina rufa, Haldeman, Mon. Lymn. IIT, 1841—; fide Binney = P. 
decisa, Say, var. 
2 Erie Canal ; coll. Prof. W. Newcomb. 
