WHiTe.] CRETACEOUS FOSSILS. 39 
CARDIUM CHOCTAWENSE Shumard. 
Plate 18, figs. 7 a, b, and c. 
For description see Trans. Saint Louis Acad. Sci., vol. i, p. 599. 
CYTHERIA LAMARENSIS Shumard. 
Plate 18, figs. 4 a and b. 
For description see Trans. Saint Louis Acad. Sci., vol. i, p. 600. 
ANCYLOCERAS ANNULATUM Shumard. 
Plate 18, figs. 10 @ and 0. 
For description see Trans. Saint Louis Acad. Sci., vol. i, p. 595. 
SCAPHITES VERMICULUS Shumard. 
Plate 18, fig. 8 a. 
For description see Trans. Saint Louis Acad. Sci., vol. i, p. 594. 
AMMONITES GRAYSONENSIS Shumard. 
Plate 18, figs. 9 a and b. 
For description see Trans. Saint Louis Acad. Sci., vol. i, p. 593. 
AMMONITES SWALLOVO Shumard. 
Plate 18, fig. 1 a. 
For description see Trans. Saint Louis Acad. Sci., vol. i, p. 591. See 
also Expl. and Sur. West of the 100th Meridian, vol. iv, p. 202, pl. KX, 
fig. 1 a, b, and ¢. 
