628 PBOCEEDINGS OF THE NATIONAL MUSEUM. vol.xxu. 



ANODONTA SUBCIRCULARIS ClessinJ 



*Anodonta subcircularis Clessin, Conch. Cab. Ano., 1873, p. 87, pi. xxii, figs. 3, 4. 

 Scutari Lake, European Turkey. 



ANODONTA VESCOIANA Bourguignat. 



^Anodonta vescciana Bourguignat, Aun. Mai., II, 1857, p. 34, pi. i, figs. 1, 2. — 



* Clessin, Conch. Cab. Ano., 1873, p. 100, pi. xxix, figs. 1, 2.— " Kobelt, Icon., 

 VII, 1880, p. 83, pi. ccvii, fig. 2102.—* P^tel, Conch. Sam., Ill, 1890, p. 186.— 



* Westerlund, Faun. Pal., II, Pt. 7, 1890, p. 201. 

 *Margaron (Anodonta) vescoiana Lea, Syn., 1870, p. 81. 



Asia Minor. 



t ANODONTA BERINGIANA Middendorff. 



*Anodonta cellensis Schroter var. beringiana Middendorff, Sib. Eeise, 11, 1851, 

 p. 284, pi. xxviii, figs. 4-7 ; xxix, figs. 1-4. — * Clessin, Conch. Cab. Ano., 1875, 

 p. 211, pi. LXV, figs. 1, 2. 



*Anodonia youconensis Lea, Pr. Ac. Nat. Sci. Phila., XI, 1867, p. 81. 



*Anodonta youlcanensis Lea, .Jl. Ac. Nat. Sci. Phila., VI, 1868, p. 287, pi. XL, fig. 

 99; Obs., XII, 1869, p. 47, pi. XL, fig. 99.—* Clessin, Conch. Cab. Ano., 1874, 

 p. 133, pi. XLiii, figs. 1,2.— '•B. H. Wright, Check List, 1888. 



*Margaron {Anodonta) youkanensis Lea, Syn., 1870, p. 80. 



*Anodonta youlcanensis P^etel, Conch. Sam., Ill, 1890, p. 186. 



Kamtscbatka; Alaska.^ 



t ANODONTA KENNERLYI Lea. 



* Anodonta kennerlyi Lea, Pr. Ac. Nat. Sci. Phila., IV, 1860, p. 306; *J1. Ac. Nat. 



Sci. Phila., V, 1862, p. 108, pi. xviii, fig. 256 ; * Obs., VIII, 1862, p. 112, pi. xviii, 

 fig. 256.—* B. H. Wright, Check List, 1888.—* P^tel, Conch. Sam., Ill, 1890, 

 p. 181. 



*Anodon Jcennerlyi Sowerby, Conch. Icon., XVII, 1870, pi. xxxiv, fig. 139. 



*Margaron (Anodonta) kennerlyi Lea, Syn., 1870, p. 79. 



Puget Sound; Britisli Columbia. 



t ANODONTA OREGONENSIS Lea. 



"Anodonta oregonensis Lea, Tr. Am. Phil. Soc, VI, 1838, p. 80, pi. xxi, fig. 67; 

 *Obs., II, 1838, p. 80, pi. xxi, fig. 67.— *Troschel, Arch, fur Nat., VI, 1839; 

 II, p. 239.— * Conrad, Pr. Ac. Nat. Sci. Phila., VI, 1853, p. 264.— *H. and A. 

 Adams, Gen. Rec.Moll., II, 1857, p. 503. — * Clessin, Conch. Cab. Ano., 1874, 

 p. 170, pi. Lvi, figs. 5, 6.—* B. H. Wright, Check List, 1888.—* P^tel, Conch. 

 Sam., Ill, 1890, p. 182. 



* Margarita {Anodonta) oregonensis Lea, Syn., 1837, p. 30. 



*Anodon oregonensis Catlow and Reeve, Conch. Nom., 1845, p. 67. — * Gould and 

 Carpenter, Pr. ZooL Soc. Loud., 1856, p. 218.— * Sowerby, Conch. Icon., 

 XVII, 1867, pi. xvxi, fig. 63. 



* Margaron (Anodonta) oregonensis Lea, Syn., 1852, p. 49; 1870, p. 78. 



* Anodon cognata Gould, Proc. Bost. Soc. Nat. Hist., Ill, 1850, p. 294. 



1 It is very hard to say what this is, as it is evidently a diseased shell. Probably 

 a member of the Cygnea group. 



"There can be no doubt but what this species occurs in Alaska and the northeast- 

 ern part of Asia, from an examination of specimens in the U. S. National Museum 

 collection from both regions. 



