FAMILY LYMN^ID^E 73 



Bering Id., Commander Islands, Bering Sea! Kadiak Island, 

 Alaska ! ponds near Yakutat Bay, Alaska (Kincaid) ! Fort Simpson, 

 Mackenzie River (Kennicott) ! near Brandon, Manitoba (Christy) ! 

 Oregon (Nuttall) ; Hannah Bay (out of James Bay) 

 near Moose Factory ! 



Specimens absolutely identical with those from Eu- 

 rope have been collected from the indicated localities. 

 It is quite likely that some of the specimens reported ^ IG ' 49- Lym- 



by collectors under the name of humilis or desidiosa nc * a ' trun ^ atula 

 , 11 it- mi Muller. (Euro- 



may have belonged to this species. Ihe form called pe an specimen ) 



ferruginea by Haldeman seems to differ only by 

 having the pillar lip more closely appressed, a character which any 

 large series will show to be inconstant in individuals among them- 

 selves as well as in the same individual in different stages. 



Lymnaea (Galba) humilis Say. 



Lymneus humilis SAY, Journ. Acad. Nat. Sci. Phila., n, p. 378, 1822 (South 



Carolina). 



Limnea humilis (SAY) HALDEMAN, Mon. Limn., p. 41, pi. 13, fig. i, 1842 



(syn. exclus.). BINNEY, Land and Fw. Sh. N. Am., 

 ii, p. 63, fig. 99, 1865. 



Range. --Yrom Georgia and Kansas northward. 

 Lake Superior ; Lake Winnipeg ; Brandon ; and Pem- 



bina Mt., Manitoba. 

 FIG. co. Lym- T , , , 



, ., . 1 have been unable to examine any authentic speci- 



naa h u m 1 1 1 s J 



Say. (Typical.) men s from north of Lat. 49, and the above localities 

 are cited from the literature. 



Lymnaea (Galba) desidiosa Say. 



Lymneus desidiosus SAY, Journ. Acad. Nat. Sci. Phila., n, p. 169, 1821 



(Cayuga Lake, N. Y.). 

 Limneus desidiosus SAY, Am. Conch., vi, pi. 55, fig. 3, 



1834. 

 Limnea desidiosa HALDEMAN, Mon. Limn., p. 31, pi. x, 



1842 (ex parte). BINNEY, Land and Fw. Sh. N. Am., 



n, p. 49, fig. 68, 1865. FlG . 5r> 



Range Northern United States and northward. &a desidiosa 

 Red Deer and McLeod, Alberta. Lower Saskatch- ( brttssa ) Sa J- 

 ewan near Lake Winnipeg ; Brandon ; Manitoba. Osoyoos Lake, 

 British Columbia (J. K. Lord fide P. P. Carpenter). 

 The above localities are cited from the literature. 



Lymnaea (Galba) galbana Say. 



Lymneus galbamts SAY, Journ. Acad. Nat. Sci. Phila., v, p. 123, 1825 (New 

 Jersey Pleistocene). 



