FAMILY ACHATINID^E 33 



Vertigo (yertina)tniHum Pilsbry, Proc. Acad. Nat. Sci. Phila., forigoo, p. 597. 



Ra7tge. — New England to Texas and Florida, 

 west to Minnesota. Ontario, Canada. 



This minute species doubtless exists on the northern 

 side of the boundary, though not yet reported 

 there. 



* Vertigo (Isthmia) pygmaea Drapamaud. 



Pupa pygmaa Draparnaud, Tableau, p. 57, 1801 ; Hist. Moll. Terr., p. 60, 



pi. in, figs. 20-21, 1805. 

 Vertigo pygm<Ta Pilsbry, Proc. Acad. Nat. Sci. Phila., for 1900, p. 608. 

 Vertigo callosa Sterki, not Reuss, and/", superioris VWihry, fide Pilsbry, 1. c. 



Range. — Europe, Asia Minor, the Caucasus; America, in the 

 northeastern States and the Lake Superior region. 



Family ACHATINIDiE. 



Genus Cochlicopa (Ferussac) Risso. 



Cocblicopa lubrica Miillcr. 



Helix lubrica Muller, Verm. Hist., i, p. 104, 1774. 



Zua lubrica Leach, Syn. Moll. Gt. Brit., p. 114, 1852; Gray's Turton's 



Man., p. 188, pi. Yi, fig. 65, 1840. 

 Cionella lubrica Jeffreys, Trans. Linn. Soc, xyi, p. 347, 1830. — Ei.nkey, 



Land and Fw. Sh. N. Am., i, p. 224, figs. 381-385. 

 Bulimus lubricoides Stimpson, Shells of New England, p. 54, 185 1. 

 Zua lubricoidea Morse, Jour. Portland Soc. Nat. Hist., i, p. 30, figs. 79, 81, 



84; pi. X, fig. 82, 1864; Am. Nat., I, 'p. 607, fig. 49, 1868. 

 Fcrussacia subcylindrica auct. noii L. 



Range. — Europe, North Africa and Asia Elinor : Siberia ; Kam- 

 chatka ; most of North America. 



Lake Superior region ; Red RiYer of the North, Lake of the Woods 

 and Turtle Mountain, Manitoba ; Moose Factory ! English River, 

 Kee^Yatin ; Laggan and Red Deer in Alberta ; Nanaimo and Victoria, 

 British Columbia ; Point Barrow ! and Yukon valley, Alaska ; Avacha 

 Bay ! Kamchatka. 



This well known shell is one of the most emphatically circumpolar 

 species in existence, and considering its immense geographical and 

 climatic range its resistance to the factors which make for variation is 

 very remarkable. 



Family CIRCINARIIDiE. 

 Genus Circinaria Beck. 



This is Macrocyclis or Selctiites of recent literature, not of Beck 

 or Hope. 



