A Pictorial Atlas of Fossil Remains, consisting of coloured illustrations selected from Parkinson's "Organic remains of a former world," and Artis's "Antediluvian phytology."

by Gideon Algernon Mantell

Fig. 14. The inner surface of the flat valve.

Fig. 15. Inner surface of the convex valve.

Fig. 16. Magnified hinge teeth of the flat, and fig. 17, of the convex valve.

Fig. 18. Magnified view of the adpressed spines on the external surface of the shell.

Plate LXIV.

PLATE LXIV.