﻿ANODONTOIDES 47 1 



Anodontoides feritssacianus var. modestus Simpson, Syn., 



1900. p. 660. 



The type, which is in the Lea collection, is the only specimen 

 I have seen, which I feel certain is the trne A. iiwdesta of Lea. 

 It is nearly subsolid, is elongated, full at the base just behind 

 the middle and slightly biangulate behind. The hinge is al- 

 most exactly like that of what is commonly called Ano- 

 donta subcvlindracea, but the beak sculpture differs consider- 

 ably, being finer and doubly looped. There are a number of 

 other shells in the general collection of the National Museum, 

 labeled Anodonta modesta, some of them by Dr. Lewis, which 

 may be a variety of A. pepiniana, others are perhaps a form 

 of the variety huchanev.sis. I am a little at a loss where to 

 place the present form, which has all the characters of an 

 Anodontoides except the beak sculpture. 



Anodontoides elliottii (Lea). 



Shell somewhat elongated, subelliptical, rather inflated and 

 thin, with a moderate subangular posterior ridge, inequilateral, 

 the beaks rather full but not very high, their sculpture a few 

 moderate ridges that curve up sharply behind ; epidermis 

 brownish or brownish-green, generally faintly rayed with light- 

 er colored, narrow rays ; hinge line slightly incurved in front 

 of the beaks, with a rudimentary, compressed anterior tooth in 

 each valve ; without laterals ; beak cavities not deep ; muscle 

 scars superficial ; nacre bluish. 



Length 73. height 38, diam. 28 mm. 



Type locality, Chattahoochee River, Columbus, Georgia. 

 Also Columbus, Mississippi. 

 Margaritana clliottii Lea, Pr. Ac. N. Sci. Phila.. II, 1858. p. 



138; Jl. Ac. N. Sci. Phila. IV, 1859, P- ^26, pi. xxxi, fig. 108; 



Obs., VTI, 1859, p. 44, pi. XXXI, fig. 108. 

 Margaron (Margaritana) elliottii Lea, Syn., 1870, p. 68. 

 Margaritana (Alasniodonta) clliottii Cr,ESSiN, Conch. Cab. 



Ano , 1876, p. 267, pi. Exxxii, figs. 3, 4. 

 Strophitns elliottii Simpson, Syn., 1-900, p. 619. 



