﻿420 ANODONTA 



Anodonta saliiiouia lj:.\, Tr. Am. Phil. Soc, \'I, 1838, p. 45, 



pi. xi\, tij4. 41 ; Obs.. Jl, 1838, p. 45, pi. XIV, fig. 41. 

 Anodon salmonia Sowuunv, Conch. Icon., XV'I, i8()7, pi. xix, 



fi.i^-- 44- 

 Mar^j;ar()ii (Anodonta) salmonia Li:\, Syii.. 1852. p. 50; 1870, 



p. 80. 

 Anodonta Icn'isii \a:\, Pr. .\c. N. Sci. Phila.. I, 1857, p. 84; 



JI. .Ac. X. Sci. Phila., 1\'. i8f)0. p. 7,h2. pi. i.xii, fig. 187; 



Obs., X'lII. p. 44, pi. I. XII, fig. 187.— Cm:ssi\, Conch. Cab. 



Ano.. 1874. p. 143. pi. XI. IX, figs. 5, (^. 

 Anodo)! IczAsii Sovvi:ki!V. Conch. Icon., XX'll, 1870, pi. xxxv, 



fig. 142. 

 Margaron (Anodonta) lci<isii I<ka, Syn.. 1870. p. 80. 



This form sometimes reaches greater dimensions than any 

 given above. The type of Lea's oi'ata is not in the Lea col- 

 lection, but the figure shows it to be a somewhat elongated 

 shell with a moderate dorsal wing and the figure and dimen- 

 sions given indicate that it is a young shell. I have seen what 

 I suppose is the type of Say's A. grandis and I believe the two 

 are identical, flea's A. salmonia is apparently a stunted fomi 

 of the above, its nacre having- been injured perhaps by a 

 Trcuiatod. 'Phere seems to be every possible transition be- 

 tween the most elongated forms of grandis and the shorter, 

 fidlcr specimens, which have received such names as plana, 

 gigantca. decora, etc. 



\'ar. gigantca Lea. 



Shell large, ovate or subrhomboid. a little higher in ])ropor- 

 tion to the length than the type: beaks fidl and high. 



Length 205, height 115. diam. 80 mm. 



Type locality. Port Gibson, Miss. 

 Anodonta gigantca Li;a. Tr. .\m. Phil. Soc, 1834. ]). 1, p\. i, 



fig. T ; Obs., IT. 1838. p. T. |)1. I, fig. T. — KusTKK. Conch. Cab. 



Ano.. 1853. p. C). pi. 1. figs. T. 2. 

 Margarita (Anodonta) gigantca Lica. Syn., i83r). p. 52: 1838, 



