TESTTJDINID.E. 127 



Cacljuga tectum (Gray l ) 



Syn. Emys tecta, Gray 2 . 



Emys tentoria, Gray 3 . 

 Emys namadica, Theobald 4 . 

 Pangshura tecta, Giinther 5 . 

 Pangshura tentoria, Giinther 6 . 

 Pangshura Jlaviventris, Giinther 7 . 



Carapace vaulted and tectiform, the ridge terminating in a pro- 

 minence in the area occupied by the 3rd vertebral shield ; nuchal 

 shield small and quadrangular ; 3rd vertebral pentagonal, pointed 

 behind; 2nd vertebral as long as broad, overlying three neural 

 bones ; neurals short. 



The first and second vertebral shields are subject to great varia- 

 tion in shape. The shell generally attains a length of about 0,185 

 (7*5 inches), but one recent specimen in the Museum has a length 

 of 0,221 (8-7 inches). 



Hab. India (Ganges and Indus basins). 



39837. An imperfect adult shell ; from the Pliocene of the Siwalik 

 {Fig.) Hills. Figured by Murchison in Falconer's ' Palaeonto- 

 logical Memoirs,' pi. xxxii. figs. 1-3, as Emys tectum ; and 

 also by the present writer in the ' Palseontologia Indica ' 

 (Mem. Geol. Surv. Ind.), ser. 10, vol. iii. pi. xxii. figs. 3 

 and 10, as P. jlaviventris. Murchison's figure is incorrect, 

 and the specimen is not the one referred to in the memoir 

 accompanying the plate. 



Cauiley Collection. Presented, 1840. 



Cachuga, sp. 



The undermentioned specimen differs from typical examples of 

 C. tectum in that the short lateral sides of the 2nd vertebral shield 

 are posterior instead of lateral. 



Hab. India. 



17435. The imperfect shell of a young individual ; from the Pliocene 

 (Fig.) of the Siwalik Hills. Figured by the writer in the ' Palse- 



ontologia Indica' (Mem. Geol. Surv. Ind.), ser. 10, vol. iii. 



pi. xxii. figs. 1 and 12. This is the specimen described 



1 Synopsis KeptiKum, p. 23 (1831).— Emys. 2 Loc. cit. 



3 Proc. Zool. Soc. 1834, p. 54. 



4 Mem. Geol. Surr. Ind. vol. ii. p. 295 (1860). 



5 Reptiles of British India, p. 33 (1864). 



6 Ibid. p. 34. 7 Ibid. p. 35. 



