Catai^ogue; Rece;ntly Described Moeeusca 137 



Paeudestrina acutissima "Whit." (Frauenfeld). 



f Amnicola acutissima "'Whit.", Frauenfeld, Verh. der k. k. Zool.-bot. Ges. 



Wien, 1863, p. 207. 

 Hydrobia acutissima ''Whit.", Frauenfeld, Ibid, 1863, p. 1021. 

 Type locality: ? 



Frauenfeld queries as to who "Whit." is. The fact that Pal. eniarginata 

 and other North American species are in the Cuming Collection named by 

 "Whit." makes it a possibility that this is also an American species. It is 

 possible that "Whit." stands for T. J. Whittemore, who was a well known 

 collector in Massachusetts in 1840. 



Paeudestrina .aEouicostata (Pilsbry). 



Bythinella ccqnicostata Pilsbry, Pr. A. N. S. P., 1889, p. 86, pi. Ill, fig. 16. 

 Type locality : Sumpter Co. and Haulover Canal, Fla. 



PaludESTRIna aedrtchi (Call and Beecher). 



Bythinella aldricki Call and Beecher, Bull. Wash. Coll., I, 1886, p. 190, pi. 



VII, figs. 11-14. 

 Type locality : Tributary of Black River, Reynolds Co., Mo. 



Paludestrina brEvissima (Pilsbry). 



Bythinella brez'issinia Pilsbry, Naut., IV, 1890, p. 64. 

 Type locality : Haulover Canal, Indian River, Fla. 



"Hydrobia''' caijfornica Tryon. 



Hydrobia calif ornica Tryon, Am. J. of Con., I, 1865, p. 221, pi. 22, fig. ii. 

 Is an Assimenia according to Pilsbry (96, p. 123). 



Paludestrina corrigata (Frauenfeld). 



Hydrobia corrigata Frauenfeld, Verh. der k. k. Zool.-bot. Ges. Wien, 1863, 



p. 1021 ; Ibid, 1865, p. 525, pi. VIII. 

 Type locality : Boston, Mass. 



Paludestrina diaboli Pilsbry and Ferriss. 



Paludestrina diaboli Pilsbry and Ferriss, Pr. A. N. S. P., 1906, p. 170, fig. 36. 

 Type locality: Devil's River, Val Verde, Texas. Also Rio San Filipe in 

 the same county. 



Paludestrina hemphilli (Pilsbry). 



Bythinella hemphilli Pilsbry, Naut., IV, 1890, p. 63. 

 Type locality : Kentucky Ferry, Snake River, Idaho. 



