FAMILY UNIONID^E I2 g 



Anodonta fragilis Lamarck, Anim. s. Vert., vi, p. 85, iSiq.-Delessert, 



Kec Coq. Lam., pi. xin, figs. ia, ib, 1841. 

 Anodonta lacustris Lea, Proc. Acad. Nat. Sci. Phila., 1, p. 84, 1857 

 Anodonta flava, pallida, glandulosazxi&irisans Anthony, Am' Tourn Conch 



1, pp. 161-3, pi. xiv-xvi, 1865. 

 Anodonta suocarinata Cvrrier, Am. Journ. Conch., in p m pi vi fi? c 



1867. ' ' 



y?«<?^ ^7* Sowerby, Conch. Icon., xvn, pi. xxn, fig. 84, 1869. 



Range. — Drainage of the St. Lawrence River basin, including the 

 lakes. 



Anticosti Island, in lake near Becsia River, six miles inland ! Battle 

 Creek, Manitoba ! 



Anodonta implicata Say. 



Anodonta implicata Say, New Harmony, Diss., 11, No. 22, p. 340 1822 — 



Clessin, Conch. Cab., ed. 11, Anodonta, p. 78, pi. xix' fig- 3 '1871 ' 

 Anodonta newtonensis Lea, Trans. Am. Phil. Soc, vi, p. 79, pi.' xxi, fig.' 66, 



Anodonta housatonica Linsley, Am. Journ. Sci., 1845, P- 277. 



Range. — Atlantic drainage from Virginia northward, St. Law- 

 rence drainage, Saskatchewan basin. 



Manitoba in Lake Winnipeg! and Souris River; lower Saskatche- 

 wan River ! 



Anodonta grandis Say. 



Anodonta grandis Say, New Harmony, Diss., n, p. 341, 1829 —Clessin 



Mon. Anod. in Conch. Cab., n. ed., p. 96, pi. xxx, figs. 1-2, 1873 

 Anodonta ovata Lea, Trans. Am. Phil. Soc, vi, p. 2, pi 11 fig 2 1838 

 Anodonta salmonea Lea (pathologic), Trans. Am. Phil. Soc, VI pa; pi 

 xiv, fig. 41, 1838. ' F ' **' y 



Anodonta lewisii Lea, Journ. Acad. Nat. Sci. Phila., iv, p 36^ pi lxii 

 fig. 187, i860. r j ~> r • , 



Anodonta footiana Lea, Trans. Am. Phil. Soc, vm, p. 225, pi. xx, fig. 44, 



Anodonta marryattianaLvA, op. cit., p. 226.pl. xx, fig 45 1842 

 Anodonta gigantea Lea, Trans. Am. Phil. Soc 1834, p' 1 pi 1 ficr t 

 (pathologic ? ). ^* * ' v ' 5 ' 



Anodonta grandis Simpson, Synopsis Naiades, pp. 641-644, 1900 (with many 

 synonyms). v J 



Range. — Entire Mississippi system and southwest to Texas ; up- 

 per St. Lawrence drainage ; Manitoba. 



Red River of the North ! Shoal Lake ; Souris River ! Fairford 

 River ! and Lake Winnipeg, Manitoba ! 



Variety footiana Lea : Souris River, Manitoba ! Nipegon River, 

 Lake Hannah. 



Variety gigantea Lea : Manitoba. 



This variable and widely extended species is responsible for many 

 synonyms cited by Mr. Simpson. It appears that the Manitoba and 



