92 DR. J. E, GRAY ON THE TRIONYCHID#, [Feb. 23, 
Hab. India: Ganges; Futtaghur (Hardwicke); Nepal (Falconer, 
Boys). 
The young specimens are olive, with short black lines on the head, 
and dorsal disk marbled with darker bands and streaks. 
Pic. 12. 
ce 
Chitra indica, 
Il. The aberrant Mud-Tortoises, with covered hind feet, have a 
broad sternum, furnished with a moveable valve on each side 
behind, which covers the hind feet when they are contracted ; 
and there are seven or nine sternal callosities. 
a. The margin of the dorsal disk flewible, without any internal 
bones; the skull short, depressed, flat above; the palate flat, 
with scarcely any alveolar ridges, and only a very slight pit 
before and behind the internal nostrils. Heptathyrina. 
HeErraTHyRa. 
Heptathyra, Cope. 
Aspidochelys, Gray, P. Z.S. 1860. 
