138 Bryant Walke;r 



Paijjdkstrina imitator Pilsbry. 



Paludestrina imitator Pilsbry, Naut., XII, 1899, p. 124. 

 Type locality: Santa Cruz, Cal. 



Pai^udestrina longinqua (Gould). 



Amnicola longinqua Gould, Pr. B. S. N. H., V, 1855, p. 130. 

 Pomatiopsis intermedia Tryon, Am. J. of C, I, 1865, p. 220, pi. 22, fig. 8. 

 Bythinella intermedia Tryon, Mon., 1870, p. 49. 

 See Pilsbry, 96, p. 122. 



Paludestrina minuta (Totten). 



Turbo mimitits Totten, Am. Jour. Sci., O. S., XXVI, 1834, p. 369, fig. 6. 

 Cingula minuta Gould, Rep. Invert. Mass., 1841, p. 265, fig. 171. 

 Type locality : Mass. and Rhode Island. 



This species is referred to Paludestrina by Pilsbry (99, p. 90). 



Paludestrina monas Pilsbry. 



Paludestrina monas Pilsbry, Naut., XIII, 1899, p. 21. 

 Type localit}^ : Wekiva River, Fla. 



Paludestrina monrolnsis (Dall). 



Bythinella .m.onrocnsis Dall, Pr. U. S. Nat. Mus., VIII, 1885, p. 256, pi. 17, 



fig. 99. 

 Type locality: Brook from Benson's mineral spring into Lake Monroe. 



Enterprize, Fla. 



Paludestrina nickliniana (Lea). 



This species is the type of Clessin's genus Stimpsonia. 



Paludestrina nickliniana attenuata (Haldeman). 



Amnicola attenuata Hald., Mon., pt. 4, 1842, p. 3 of wrapper; Mon., 1844, p. 



22, pi. I, fig. 13. 

 Bythinella attenuata Binney, L. and F. W. Shells, pt. Ill, 1865, p. 68, fig. 132. 



Paludestrina protea (Gld.). 



Amnicola protea Gould, Pr. Bost. S. N. H., V, March, 1855, p. 129. 

 Melania exigua Conrad, Pr. A. N. S. P., April, 1855, p. 269. 

 Tryonia protea Binney, L. and F. W. Shells, III, 1865, p. 72, fig. 140. 

 Bythinella protea Stearns, N. Am. Fauna, No. 7, Pt. II, 1893, p. 278. 

 Paludestrina protea Stearns, Pr. U. S. Nat. Mus., XXIV, 1901, p. 277, pi. 

 XIX-XXI. 



