FAMILY UNIONIUvE 12'] 



Lampsilis (^Prppicra) alatus Si.Mi'SON, Synopsis, p. 567, 1900. 



Range. — Entire drainage of the St. Lawrence; of the Mississippi 

 north of Arkansas ; Ahibama ; Manitoba. Red River of the Nortli ! 



Lampsilis gracilis Barnes. 



UiUo gracilis Uarnks, .Am. Journ. Sci., 1st ser., vi, p. 274, 1823. — Sowerby, 



Conch. Icon., ,\vi, pi. .\xxix, fig. 215, 1866. 

 Lampsilis graciiis SitA-psoti, Synopsis, p. 573, 1900. 



Range. — Eastern Texas; Mississippi, and St. Lawrence drainage; 

 Manitoba. Red River of the North ! 



Genus Strophitus Rafinesque. 



Strophitus rugosus Swainson. 



Aiioiion rui^osus Swainson, Zool. 111., ist ser., 11, pi. xcvi, 1822. 

 Alasmcidonta edentula Say, New Harmony, Diss., 11, No. 22, p. 340, 1829. 

 Anodonta edenlula Ferussac, Mag. de Zool., Giierin, 1835, p. 25. 

 S/roplii/t4S edc'Htulus Co\KKU, Proc. Acad. Nat. Sci. Phila., vi, p. 263, 1853. 

 Anodonia iindiilata Hildreth, Am. Journ. Sci., xiv, p. 290, 1828. 

 Aitodon nreoliitiis i^\\MVi'in\, Zool. 111., 2d ser., I, pi. xvill, 1829. 

 Anodonta ivardiana Lea (1836), Trans. Am. Phil. Soc, vi, p. 46, pi. xiv, 



fig. 42. 1838. 

 Anodonia tc-tragona Lea (1845), op. cit., x, p. 82, pi. vili, fig. 25, 1845. 

 Anodonta arkansasensis Lea, op. cit., XI, p. 293, pi. xxix, fig. 56, 1852. 

 Anodonta shcrfferiana Lea, op. cit., x, p. 288, pi. xxvi, fig. 50, 1852. 

 Anodonta showalteri Lea (i860), Journ. .Acad. Nat. Sci. Phila., 1862, p. 215, 



pi. xxxiii, fig. 284, 1862. 

 Alasmodon rhombica Anthony, Am. Journ. Conch., I, p. 158, pi. 12, fig. 5, 



1865. 

 Anodonta salmonea Clessin, Conch. Cab., Mon. Anodonta, p. 91, pi. xxiv, 



figs. 1-2, 1873. 

 Anodonta pavonia Lea. 



Range. — St. Lawrence system; the whole of the Mississippi 

 drainage, Texas, Alabama, the Atlantic drainage ; Manitoba. 



Red River of the North ! Lake Winnipeg ! Great Playgreen Lake ! 

 Saskatcliewan River. 



Genus Anodonta Lamarck. 

 Anodonta beringiana Middendorff. 



Anodonta ccllensis var. beringiana MiDD., Sib Reise, 11, p. 284, pi. xxviii, 



figs. 4-7, pi. XXIX, figs. 1-4, 185 1. 

 Anodonta youconensis Lea, Proc. Acad. Nat. Sci. Phila., xi, p. 81, 1867. 

 Anodonta youkanensis Lea, Journ. Acad. Nat. Sci. Phila., n. s. , vi, p. 287, pi. 



XL, fig. 99, 1868. 



Range. — Drainage into Bering Sea from Asia and America ; also 

 Cook Inlet drainage. 



Kenai PeninsuL-i ! Kuskokwim River near Redoubt Kolmakof ! 

 Yukon River below Anvik, in pools and quiet sloughs left by the 



