FAMILY AMNICOLID^E 



Say's Pennsylvania type. The above range is taken from the 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. 



Genus Fluminicola Stimpson. 

 Fluminicola nuttalliana Lea. 



FIG. 88. Lyo- 

 gyrus granum,\. 



Paludina nuttalliana LEA, Trans. Am. Phil. Soc., vi, p. 101, pi. xxin, fig. 



109, 1839. 

 Paludina seminalis HINDS, Zool. Sulphur Voy. Moll., p. 59, pi. xvi, fig. 22, 



1844. 

 f Amnicola hindsii BAIRD, P. Z. S., London, 1863, p. 67. 



FIG. 89. Fluminicola nuttalliana, \ . FIG. 90. Fluminicola hindsii Baird, \. 



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 any 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., VT, p. 91, pi. 



xxin, fig. 93, 1839. 

 Paludina nuclea LEA, op. tit., p. 91, pi. xxin, 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- 

 inicola virens 

 (magnified). 



Genus Pomatiopsis Try on. 

 Pomatiopsis lapidaria Say. 



Cyclostoma lapidaria SAY, Journ. Acad. Nat. Sci. Phila., I, p. 13, 1817. 

 Amnicola lapidaria HALDEMAN, Mon. Limn., vm, p. 18, pi. i, fig. 10, 1845. 

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



(name only). STIMPSON, Smithsonian Misc. Coll., Mon. Hydrobiinae, 



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



