171 St. Maurice and Claiborne Pelecypoda 171 



from the Orangeburg District, S. C, and Ft. Gaines, Ga. It 

 occurs in the Jackson at Montgomery, Ala. 



Semele llnosa, var. claibornensis, n. var., PI. 52, Figs. 4, a 



Semele profunda Dall, Trans. Wag., Ill, 1900, p. 986. Ball's speci- 

 men, but not Conrad's figure. 



This little specimen, (8.5 X6.4V1.5 mm) labelled ".S". pro- 

 funda T' seems to be a weak, senile representative of the well 

 characterized linosa of the St. Maurice stage. Its concentric 

 lines are evident anterio-basally but seem never to have been well 

 developed posteriorly. 



The specimen figured, the only one known, is from the Clai- 

 borne sand, Claiborne, Ala., and was borrowed for figuring 

 from the National Museum, No. 129,548. 



Semele linosa, van, PI. 52, fig. 5, a 



Specimen from Keitt's Ravine. S. C, having a broad, Abra- 

 like aspect. U. S. Nat. Museum specimen. 



Semele linosa, var., PI. 52, Fig. 6 



Specimen 6.5 mm. in length, having something of the as- 

 pects of both claibornensis, var., and T. australina. 



Semele profunda Conrad, PI. 52, Figs. 7, 8 



Amphidesina profunda Con. Name mentioned, p. 8. App. Mort. 



Synop. Org. Rem., 1834. 

 A. profunda Con., PI. 19, fig. 14, Harris' Reprint, Con. Foss. Shells, 

 &c, 1893. 



Although this species has never been described, the figure 

 given on the plate above referred to is quite suificient for its iden- 

 tification. ^\i^ndii!n& profunda, too, is exceptionally well chosen. 

 We have but one valve of this rare species, the one herewith 

 figured ; but if two valves were placed in normal position the di- 

 ameter of the shell would be at least two-thirds the height. Cer- 

 tain small CumingicB have somewhat the proportions of this spe- 



