GEOGRAPHICAL DISTRIBUTION. 
MolL 16 
only 2 terrestrial and 3 freshwater species are found in the Arctic part 
of Norway or Finmark (viz., Margaritana margaritifera^ Limnoea peregra^ 
Succinea putris, Zonites Tiammonis, and Helix arhustorum)^ and 23 ter- 
restrial and 3 freshwater in middle Norway, near Trondhiem, is given by 
G. O. Saks, Moll. arct. Norveg. pp. 369-372. 
Russia. Nine species of terrestrial and 27 freshwater species, collected 
by O. Polenhoff, in the government Tambow, at an affluent of the Don, 
enumerated by E. v. Martens, with some observations on the distribu- 
tion of land and freshwater mollusks in the different faunistic subdivi- 
sions of European Russia which have been distinguished by Bogdanow. 
Generally the fauna of terrestrial shells is rather poor and uniform from 
the shores of the White Sea to the Southern Provinces, and it is only at 
the shores of the Black Sea, at Odessa, and chiefly in the Crimea, that 
distinct species of South European type make their appearance. Among 
the freshwater shells there are some distinct southern species and genera, 
generally common to all Russian rivers emptying into the Black Sea, and 
also to the Danube, such as Lithoglyphus and Melanopsis ; these extend 
much more northwards than the southern terrestrial shells. SB. nat. Fr. 
1878, pp. 82-89. 
41 species of Clausilia observed in Russia are enumerated by O. 
Bottger, Mel. Biol. x. pp. 159-198. 26 of them are found only in the 
Crimea, Caucasus, or Transcaucasia ; the following are more or less gene- 
rally spread over middle Europe, and occur also in the Baltic provinces of 
Russia : — C. perversa (L., Balea')^ laminata (Mont.), commutata (Rossm.) 
(?), orthostoma (Menke), (Drap.), hiplicata (Mont.), cana (Held.), 
parvula (Stud.) ?, duhia (Drap.) ?, nigricans (Pult.), cruciata (Stud.), 
pumila (Ziegl.), plicatula (Drap.), ventricosa (Drap.), and filograna 
(Ziegl.). 
Poland. A. Slosarski gives a list of 52 terrestrial and 53 freshwater 
species observed in Russian Poland. The most common terrestrial 
species near Warsaw are Helix arhustorum^ hispida^ and pulchella ; near 
Zloty Potok, H. austriaca and fruticum\ near Ojcow, H.faustina and 
rufescens. Only 4 species of Pupa {avenacea, muscorum^ minutissima^ 
and doliolum') are enumerated ; but 8 of Clausilia : hidens [^laminata'], 
similis [biplicata'Jj rugosa \y\^plicata, plicatula, commutata, parvula, and 
ventricosa. Freshwater mollusks are much more copious in number 
of individuals than terrestrial. Among the more remarkable of them 
are Limnceus silesiacus, Planorhis septemgyratus, Amphipeplea glutinosa, 
Valvata naticina, Hydrohia viridis [P] and dunkeri, Lithoclypus fuscus, 
in the river Bug ; and Cyclas rivicola. Dreissena polymorpha is 
common in the Vistula near Morysinek. Bull. Soc. Z. Fr. i. [1876], 
pp. 291-299. 
Galizia. 90 terrestrial and 64 freshwater species enumerated by 
J. Kr6l, Verb. z.-b. Wien, xxviii. pp 1-10. 
New species for the British fauna : Succinea virescens (Morelet) = 
putris var. vitrea (Jeffreys, Brit. Conch.), and Vertigo lillielorgi (Wester- 
lund) ; new British localities for Vertigo moulinsiana (Dupuy), and 
angustior (Jeffr.) ; Jeffreys, Ann. N. H. (5) ii. p. 382. 
Yorkshire. W. Nelson’s and J. W. Taylor’s paper on the land and 
