PLATE II. 
Fig. 20. Strophonella tenuistriata. A, pedicel valve, from Cerro Gordo. B, i 
brachial valve, from Nev/ Era. Both from Tennessee. Brownsport bed. ' 
Fig. 21. Strophonella dixoni. Brachial valve. Dixon Spring, Tennessee. ]i 
Brownsport bed. 
Fig. 22. Strophonella ganti. Brachial valve. Gant place, northeast of Mar- J 
tins Mills, Tennessee. At base of Gant division of Brownsport bed. | 
Fig. 23. Strophonella prolongata. A, B, brachial valves. Brownsport Fur- j 
nace, Tennessee. Brownsport bed. ij | 
Fig. 24. Strophonella rcemeri. Brachial valve. Brownsport Furnace. Browns- j i 
port bed. 
Fig. 25. Strophonella laxiplicata. A, pedicel valve. B, Fragment 
valve, with striae more prominent than usual at the beak. Brownsport 
Brownsport bed. 
Fig. 26, Strophonella semifasciata-Brownsportensis. Fragment of brachial j 
valve. Brownsport, Tennessee. Brownsport bed. !| 
Fig. 27. Schuchertella roemeri. A, C, brachial valves. B, ventral valve. \ 
Dixon Spring, Tennessee. Brownsport bed. j 
Fig. 28. Rhipidomella lenticularis.' A, brachial valve. By pedicel valve. ' 
Brownsport Furnace, Tennessee. Brownsport bed. | 
Fig. 29. Meristina maria-roemeri. A, brachial valve. B, Anterior view. || 
Glenkirk, Tennessee. Brownsport bed. 
Fig. 30. Spirifer geronticus. A, cardinal view. By Ventral valve, fragment, j 
Dixon Spring, Tennessee. Brownsport bed. j 
Fig. 31. Reticularia pegramensis. Ay pedicel valve. By brachial valve. | 
Pegram, Tennessee. Brownsport bed. 
Fig. 32. Cyrtia cliftonensis. Pedicel valve. Clifton, Tennessee. Browns- ! 
port bed. i 
Fig. 33. Spirifer swallowensis. Brachial valve, photographed in an inverted | 
position in order to indicate the concentric striae better. Only two plications are 
shown here, one of which corresponds to the median fold; the other is the lateral 
plication. Swallow bluff, Tennessee. Waldron bed. 
Fig. 34. Atrypa arctostriata. Ay pedicel valve. By brachial valve. Browns- | 
port Furnace. Brownsport bed. J 
Fig. 35. Conchidium lindenensis. Pedicel valves. Coon creek, east of Linden, 
Tennessee. Brownsport bed. I 
Fig. 36. Conchidium legoensis. Northeast of Lego, Tennessee. Brownsport , 
bed. 
if pedicel || 
Furnace, l! 
