TAB. XIII. 



Polyptychodon continuus (?). 



Fig. 



1. A block of Green-sand stone, containing the shaft of a tibia, t, and the lower end 



of that of a fibula, f, (scale of 2 inches to a foot.) 



2. A block of Green-sand stone, containing the shaft of the humerus, h, and that of 



the ulna, u, (same scale.) 



3. A portion of the matrix, with impressions of the shafts of two metacarpal or 



metatarsal bones (same scale.) 



4 and 5. Fragments of long bones (same scale.) 



From the Green-sand, near Hythe, Kent. Discovered and presented by 

 H. Mackeson, Esq., to the British Museum. 



