22 LAND AND FRESH WATER MOLLUSKS 



Zoogenites harpa Morse, Journ. Portland Soc. Nat. Hist., I, p 32, pi. 1, figs. 



1-14, 1864; Am. Nat., I, p. 608, figs. 50-51, 1868. 

 Acanthimda harpa Binney, Land and Fw. Sh. N. Am., 1, p. 156, figs. 267-9, 



1869 ; Bull. U. S. Nat. Mus. No. 28, p. 185, figs. 181-184, 1885. 

 Zoogenetes harpa and. plur. 



Range. — Northwestern Scandinavia, northeastern America, British 

 America near Hudson Bay, Southeastern Alaska, and the easternmost 

 margin of Siberia. 



Konyam Bay, eastern Siberia ; Avacha Bay, Kamchatka ! Bering 

 Island, Commander group ; lower Amur River region. Klehini, Chil- 

 kat Inlet and valley, Alaska ; English River, Manitoba ! Moose 

 Factory! Hudson Bay; Minnesota; Gaspe ; New England ; etc. 



The peculiarities of the distribution of this curious little mollusk are 

 referred to in the general discussion of the fauna of northeastern Asia. 



Genus Vallonia Risso. 



Vallonia Risso, Hist. Eur. Mer., iv, p. 101, 1826; V. rosalia Risso, pi. 3, 



fig. 30, = Helix costata Muller. 

 Zurama Leach, Proofsheets, p. 108, 1819. — Turton, Man., p. 64, 1831 ; 



Gray's Turton, p. 141, 1840. — Leach, Syn. Moll. Gt. Brit., p. 77, 1852 ; 



H pukhella Muller. 

 Atnplexis Brown, 111. Conch. Gt. Brit., expl. pi. xli, figs. 75-79, 1827; H 



pukhella Muller. 

 Amplexus Brown, op. cit., 2d ed., p. 45, 1844. 

 Chilostotna (sp.) Fitzinger, Syst. Verz., p. 98, 1833. 

 Circinaria (sp.) Beck, Index Moll., p. 23, 1837. 

 Glaphyra Albers, Heliceen, p. 87, 1850. 

 Lucena Moquin Tandon, Hist. Moll. Terr, et Fluv. France, 11, pp. 98, 140, 



1855 ; not of Oken, 181 5, or Hartmann, 1821. 



Vallonia pukhella Muller. 



Helix ptdchella Muller, Verm. Terr., 11, p. 30, 1774. — Binney, Boston 

 Journ. Nat. Hist., in, p. 375, pi. ix, fig. 2, 1840. — W. G. Binney, Land 

 and Fw. Sh. N. Am., 1, p. 157 (ex parte), figs. 270-1, 1869. 



Fig. 2. Vallonia pulchella, f. 



Helix minuta Say, Journ. Acad. Nat. Sci. Phila., 1, p. 123, 18 19. — Morse, 



Am. Nat., 1, p. 544, fig. 39, 1867. 

 Helix paludosa DaCosta, Brit. Conch., p. 59, 1778. 

 Vallonia minuta Morse, Journ. Portland Soc. Nat. Hist., 1, p. 21, figs. 54- 



56, pi. viii, fig. 57, 1864. 



