﻿104 I.AMPSIMS 



Lcnj^th T,/, height 23, diatii. 15 inni. 



Walker County, Georgia; Chnch River. \'irginia. 



T\"i3e locality, Lafayette, Ga. 

 Unio proprius Lea, Pr. Ac. N. Sci. Phila., IX, 1865, p. 89; Jl. 



Ac. N. Sci. Phila., VI, 1869, p. 256, pi. xxxt, fig. 70; Obs., 



XII, i860, p. 16, XXXI. fig. 70. 

 Margaron (Unio) proprius Lka, Syn.. 1870, p. 45. 

 Lanipsilis proprius Simpson, Syn., 1900, p. 548. 

 f Unio striatus Sowehpy, Conch. Icon., X\' I. 1868, pi. lxxvtii^ 



fig. 407. 



This may be only a variety of L. vanuxemensis, a most 

 abundant and variable species. It is smaller than that shell 

 and generally more tawny or yellowish. 



Lampsilis punicea (Haldeman). 



"Shell ovate elliptical, regularly inflated, rather thick in tex- 

 ture ; short and obtuse anteriorly ; slightly narrowed, and ob- 

 tusely rounded posteriorly ; umbones eroded, and not elevated 

 above the dorsal outline; umbonical slope undefined, posterior 

 slope elevated; anterior teeth thick and direct, posterior ones 

 short and straight ; epidermis smooth, yellowish-brown, with 

 well-defined dark green rays upon the posterior margin of the 

 shell ; inside light reddish-orange. 



Length 2.2, height 1.2, diam. 0.8 inch. Hab. : Holston River^ 

 Washington County, Virginia. Distinguished from U. tene- 

 brosiis by having more robust and direct teeth ; and from U. 

 muhlfeldianus, by being higher and more obtusely rounded in. 

 front, and less so posteriorly." 

 Unio pnnicens Haldeman, Jl. Ac. N. Sci. Phila., VIII, 1842,. 



p. 20T. 

 Margaron (Unio) pnnicens Lea. Syn., 1870, p. 46. 

 iMmpsilis pxiniccus Simpson, Syn., 1900, p. 548. 



This species has never been figured, but from the description 

 I take it to be a member of the snbrostrata group, and it is 

 ver\' likely a synonym of some of the other species, a male /,. 

 7'anu.vemcnsis possibly. I give Haldeman's description and 

 remarks. 



