160 SUPPLEMENT. 



resemblance of the shell, when floating on the surface of the 

 water, to " une jjetite bulle d'air transparente." 



P. 233. — B. AcuTus. E. Near Nykjobing, Jutland; pro- 

 bably introduced (Morch); Malta (Issel); Alexandi'ia (E. v. 

 Martens). 



P. 235. — B. MONTANus. E. Ural Mountains (Middendorff); 

 Sweden (Zetterstedt) ; Belgium (Colbeau) ; S. France (De 

 Brebisson) ; Catalonia (Graells) ; Tuscany (Pecchioli, /. Gen- 

 tiluomo). 



P. 237. — B. OBScuRUs. E. Algeria (Bourguignat). 



P. 243. — Pupa secale. E. Capri I. (Philippi); Sicily (Cal- 

 cara) ; Madeira (Watson). 



P. 245. — P. RiNGENs. Banff (Edward); Dingwall (Bucha- 

 nan White); Cheshire (Webster). L. Pfeiffer does not seem 

 to have known the synonymy of this species. 



P. 246. — P. UMSiLicATA. E. Madeira (E. T. Lowe and 

 others) ; S. Abyssinia (Henglin, /. E. v. Martens). P. an- 

 conostoma, Lowe. 



P. 249.— P. EMARonxATA. E. U.S., as P. hadia of Prof. 

 Adams. 



P. 253. — Vertigo antivertigo. E. Kiev, Russia (Jelski) ; 

 Sicily (Calcara and others). 



P. 2Qb. — V. MouLiNsiANA. F. Cambridge (Dewick). E. 

 Ronneby, Sweden (Westerlund, as V. modesta afterwards V. 

 Lillehorgi); Lake Fuurso, Denmark (Morch) ; Frankfort (Hey- 

 nemann, as V. venti^osa) ; Berne (Lischke); Tirol (Gredler) ; 

 Sicily (Benoit). 



P. 257. — Y. pygm^a. E. Lapland (Nylander). 



P. 259. — V. alpestris. E. Amoorland (Schrenck) ; Swe- 

 den (Lindstrom and others); Bonn (Lischke) Tirol (Gredler). 



P. 261.— V. suBSTRiATA. Banff" (Edward) ; Perth (Bucha- 

 nan White) ; Went Vale, Yorkshire (Ashford). E. Denmark 

 (Feddersen and others), and various parts of Germany. 



P. 263. — V. PusiLLA. E. Lapland — Sicily. 



P. 265. — V. ANGUSTiOR. Milford, Yorkshire (Blackhouse). 

 E. Russia, Sweden, Denmark, Belgium, N. Italy, Transyl- 

 vania, and Dalmatia. V. vertigo, Issel. 



P. 268. — V. EDENTULA. E. Dalmatia (Brusina) ; Madeira 



