﻿35^ STROPHITL'S 



Anodonta subi-cxa Conrad, Am. Jl. Sci., XX\', 1834, p. 341, 



pi. \, fig. I. 

 Margarita (Anodonta) subvexa Lha, Syn., 1836, p. 52; 1838, 



P- 31- 

 Anodon subvexa Catlow and Rekvk, Conch. Nom., 1845, P- 



68. 

 Margaron (.iiiodonta) subi-exa Lka, Syn., 1852, p. 50; 1870, 



p. 81. 

 Lanipsilis snbirxa vSimpson, Syn., 1900, p. 533. 



In the Syno[>si.s, f placed this species in Lampsilis with 

 great hesitation. Since then I have seen additional material 

 that has convinced me that it is a valid species of Straphitus. 



Stkoi'ihti'S rauiatus (Conrad). 



"Shell ovate-acute, ventricose ; posterior end produced and 

 pointed at the end ; cardinal tooth in the right valve elongated 

 and anterior to, and distant from the beak ; cardinal tooth in 

 the left valve elongated, and situated immediately under the 

 beak. Shell ovate-acute, ventricose, with the posterior side 

 produced and pointed at the end ; beaks prominent and pointed 

 at the apex, \\ hicli has two or three profound undulations ; 

 epidermis light olive, l^^autifully rayed with dark green; cavity 

 capacious; nacre waxen-yellowish." (Conrad). 



Length 2.5 inches. 



Type locality, small streams in South Alabama. 

 .ilasniodonta radiata Coxrad, Am. Jl. Sci., XX\', 1834, p. 341, 



pi. I, fig. 10. 

 Margarita (Margaritana) radiata Lea, Syn., 1836, p. 44; 1838, 



p. 27. 

 Margaron (Margaritana) radiata Li:a. Syn.. 1852. p. 43; 1870, 



p. 68. 

 Stropliitns radiatus Conrad, Pr. Ac. X. Sci. I'hila., \'\, 1S53. 



]). 263. 

 f Stropliitns radiatus Simpson, Syn.. Tf)00. p. 620. 



I cannot give a guess as to what this is or where it really 

 belongs. The figure is rather poor, representing a shell with 

 an upper anterior angle, the front end somewhat i>ointed a 

 short distance below this anijle, and the anterior base of the 



