40 PALUDINTD^. 



23. Bythinia leachi. 



Turbo Leachi, Shepjyard, Trans. Lin. Soe. XIV, 1S23, England; = Faludina 

 ventricosa, Gray, Med. Repos. 1821 {sine deser.) ; fide Jef., var. elongata, 

 Hn gland. 



3 England ; coll. G. Nevill, Esq. 



2 North Italy; ex "Liuuaja" (as " B. siniilis, Zgl. = ventrosa. Gray"). 



snbvar. major. 

 1 Troitskaja (Siberia) : ex c. Dr. H. Dohrii. 



subvar. inflata. 



4 Suchorowskaja (Siberia) ; ex c. Dr. H. Dohrn. 



2 Albania ; ex " Linnsea" (as " B. orsinii, Charp.") 



These are certainly not tlie species figured by Klister as 

 PalucUna orsinii, " Charp. Ms., from Ascoli " (Central Italy). 



24. Bythinia troscheli. 



Paludina Troschelii, Paasch, Wiegm. ArcMv. 1842, Berlin ; = Paludina 

 similis. Boll, Moll. Mecklenb. 



1 Aix-les- Bains; coll. G. Nevill, Esq. 

 7 Kashmir j coll. Dr. F. Stoliczka. 



The latter specimens are all decollate ; the whorls are even 

 more convexly rounded than usual. 



25. Bythinia orsinii. 



Paludina Orsinii, Charpentier ms., Kilster, Conch. — Cah. II, 1852, Ascoli, 

 1 Carthagena (Spain) ; coll. G. NeviU, Esq. (4f, 3|). 



The above original figure agrees exactly ; this specimen 

 measures long. 4|, diam. (vix) 3 mil., and thus agrees fairly 

 with B. hourgiiignati, Palad., from Perpignan, the last 

 whorl of which, however, is less convex ; B. meridionalis, 

 Fraiienfeld, from Spain, is also somewhat like, but it has the 

 spire less produced, the apex more obtuse, and the aperture 

 more evei'ted. 



26. Bythinia rubens. 



Palndina rubens, MenTce, Sgn. II, 1830, Sicily ; var. sinistrorsa, Phil., Zeits. 

 Mai. 1844. 



2 Sicily ; ex *' Linnaea". 



5 Italy (?) ; ex c. Prof. H. Troschel. 



