FAMILY AKIONIDJB 47 



* Prophysaon foliolatum Gould. 



Arion folio latus GOULD, Moll. U. S. Expl. Exped., p. 2, pi. i, figs. 2a, 2b, 



1852 : Puget Sound. 



Phenacarion foliolatus COCKERELL, Nautilus, in, p. 127, Mar., 1890. 

 Phenacarion hemphilliVJ. G. BINNEY, 3d Suppl. Terr. Moll., v, p. 208, pi. 



vni, fig. c, ix, fig. H ; 4th Suppl., p. 183 ; not Prophysaon hemphilli 



Bland and Binney. 

 Prophysaon foliolatum (GOULD) PILSBRY, Proc. Acad. Nat. Sci. Phila., for 



1898, p. 248, pi. x, figs. 15, 1 6, 17; pi. xi, fig. 32; pi. xin, figs. 55, 56, 



57, 58; pi. xiv, fig. 70; pi. xv, fig. 80; pi. xvi, figs. 90, 98. 



Range. Puget Sound region. 



Prophysaon humile Cockerell. 



Prophysaon humile COCKERELL, Nautilus, HI, p. 112, Feb., 1890. W. G. 



BINNEY, 3d Suppl. Terr. Moll., v, p. 211, pi. vn, figs. E, G, L, M, 1890. 



PILSBRY, Proc. Acad. Nat. Sci. Phila., for 1898, p. 251, pi. xvi, fig. 97. 

 Prophysaon fasciatum COCKERELL, in Binney, 3d Suppl. Terr. Moll. , v, p. 



209, pi. vn, fig. A, 1890. PILSBRY, op. tit., p. 251, pi. x, figs. 23-27 ; 



pi. xi, fig. 34; pi. xii, figs. 37-40; pi. xvi, figs. 91, 94-96. 

 Prophysaon fasciatum var. obscurum COCKERELL, The Conchologist, H, p. 119, 



Mar. 1893. 



Range. Northern Idaho to Puget Sound and northward to Alaska. 



P. humile Loring, Alaska ! Seattle ! 



P. fasciatum Old Mission, Idaho; Chehalis and Seattle, Wash. 



* Prophysaon coeruleum Cockerell. 



Prophysaon caeruleum COCKERELL, Nautilus, in, p. 112, Feb., 1890. BIN- 

 NEY, 3d Suppl. Terr. Moll., v, p. 209, pi. vn, figs, i, j, May, 1890. 

 PILSBRY, Proc. Acad. Nat. Sci. Phila., for 1898, p. 253, pi. ix, figs. 7-11; 

 pi. xi, fig. 30; pi. xin, figs. 51-53 ; pi. xvi, fig. 86, Nov., 1898. 



P. caruleum var. dubium COCKERELL, loc. cit., 1890. 



Range. Portland, Oregon; Seattle and Olympia, Wash. 



Genus Ariolimax Morch. 



Ariolimax columbianus Gould. 



Limax columbianus GOULD, Terr. Moll., 11, p. 43, pi. LXVI, fig. I, 1851 ; 

 Moll. U. S. Expl. Exp., p. 3, fig. i, a, b, 1852. 



Ariolimax columbianus MORCH, Mai. Bl.,vi, p. no, 1859. BINNEY, Am. 

 Journ. Conch., i, p. 48, pi. vi, figs. 11-13, ^65 ; Land and Fw. Shells 

 N. Am., i, p. 279, fig. 499, 1869 ; Man. Am. Landsh., p. 98, figs. 58- 

 61, 1885. PILSBRY, Proc. Acad. Nat. Sci. Phila. for 1896, p. 342; 

 1898, p. 235, pi. xv, fig. 81; pi. xiv, fig. 66; pi. xv, figs. 73, 74, 1898. 



Range. Santa Barbara, northward to Sitka,Victoria, and Nanaimo. 



Malcolm Island and Broughton Strait, British Columbia ; SE. Alaska 

 (to Cross Sound?) Klawak, Prince of Wales Archipelago! Sitka, 

 Alaska ! and probably north to Cross Sound and Icy Strait, or even 

 Lituya Bay. 



