24 BuivLKTiN 37 ' 34 



Psammobia harrisi, n. sp. PI. 3- ^ig^- ^9. 20. 



Shell nearly equilateral ; truncate behind, with fine concen- 

 tric sculpture, coarser at each end ; ligamental area short ; cica- 

 trices distinct ; lateral tooth long ; posterior one short. Length 

 about 37 mm. 



Locality. — Gregg's Landing, Ala. River, Ala. 



Remarks. — This species resembles P. ozarkana Harris but is 

 more obtuse. The type is not perfect. 



DIVERSA 

 (Echinocyamus ?) meyeri, n. sp. PI. 3. Figs. 21, 22. 



Test small, ovate ; flattened below ; deeply pitted with ovate 

 scars above which become nearly square on the sides and below ; 

 substance of the test of moderate thickness ; apicial sj^stem near- 

 ly central ; ambulacral petals relatively short, straight, with 

 numerous round pores. Peristome is medium circular, and 

 slightly depressed ; periproct not small, closer to the peristome 

 than the side. Length 5 mm. ; width 3^ mm. ; height 3 mm. 



Locality. — Gosport Sand, Claiborne, Ala. 



Type. — My cabinet. 



Remarks. — This species is peculiar in the deep pits covering 

 the surface. It is larger than E. huxleyanus Meyer and more 

 obese though egg-shaped. Received from Dr. Otto Meyer in 

 whose honor I have named it. 



Notes 



BLACK BLUFF OR SUCARNOCHEE HORIZON. 



Prof. H. H. Smith and wife collected a number of species 

 from these clays not far from Camden, Ala., in the vicinity of 

 Estelle, Ala. The deposit consists of an aluminous cla}^ dark 

 chocolate in color, and contains the greater part of the species 

 mentioned by Prof. G. D. Harris from the bluff at Fort Gaines 

 on the Chattahoochee River where they seem to be represented 

 principally by casts. Those near Estelle are rather numerous, 

 but very fragile. A few new species are described in this paper. 



