FAMILY AMNICOLIU.*; 



119 



Say's Pennsylvania type. The above range is taken from tlie litera- 

 ture ; not having seen Manitoba specimens I am unable to determine 

 what species they represent, but it appears that there 

 is a small species in Manitoba resembling L. granum. ^j. 



Fig. SS. Lyo- 

 gyrus i;riinHm,\. 



Genus Fluminicola Stimpson 

 Fluminicola nuttalliana Lea. 



Pahidina iiiittalliana Lea, Trans. Am. Phil. Soc, vi, p. loi, pi. .\.\lii, fig. 



109, 1839. 

 Paludina saninalis HiNDS, Zool. Sulphur Voy. Moll., p. 59, pi. xvi, fig. 22, 



1844. 

 ? Amnicola hindsii V<k\v,v>, P. Z. S., London, 1863, p. 67. 



Fig. 89. Fluminicola nuttaHiana, 



Fig. 90. Fluminicola hitidiii\\:\\ri\. 



Range. — California to British Columbia. Variety hindsii in Koo- 

 tenai River and Wigwam River, at the foot of the Rocky Mountains, 

 at an elevation up to 4,626 feet. 



I have not seen anv British Columbian specimens and accept the 

 identity of F. hindsii and nuttalliana on Mr. Binney's authority. 

 According to Dr. Pilsbry this species is common to the Columbia 

 River drainage of British Columbia and the United States. 



Fluminicola virens Lea. 



Paludina virens Lea, Trans. Am. Phil. Soc, vi, p. 91, \>\. 



xxnr, fig. 93, 1839. 

 Paludina nucUa\j£.^, op. cit., p. 91, pi. x.xiii, fig. 103, 1839. 



Range. — Oregon, Willamette River, Washington, 

 and Vancouver Island. 



In this instance the Vancouver habitat is cited from 

 the literature. 



Fig. 91. Flum- 

 in icola virens 

 (magnified). 



Genus Pomatiopsis Trjon. 

 Pomatiopsis lapidaria Say. 



Cyclos/oma lapidaria Sav, Journ. Acad. Nat. Sci. Phila., I, p. 13, 1817. 

 Amnicola lapidaria Haldeman, Men. Limn., vill, p. 18, pi. I, fig. 10, 184;. 

 Pomatiopsis lapidaria Trvon, Proc. Acad. Nat. Sci. Phila., for 1862, p. 452 



(name only). — Stimi'So.m. .Smithsonian Misc. Coll., Mon. Hydrobiin;e. 



pp. 29-36, figs. 22-26, 1865. 



