744 EEPTILIA. 



it. There is a narrow fissure in the anterior margin of the latter, and internal to 

 this another, and, from the lower end of its inner margin, a narrow hand is given off 

 which joins with a corresponding narrow hand from the quadrate lohule, and as the 

 two sides of the liver have also the usual connection, there are thus two connecting 

 hands, as in Fangshura. Where the true connecting hand joins the right division, a 

 long hroad bifurcate process passes downwards to receive the vena cava, reaching 

 down a long way below the spleen which rests to the right of its bifurcation. The 

 cystic lobe is conical and expanded below, and slightly bifurcate on its posterior lower 

 margin. The cystic bladder is remarkable for its great length, 1"'75, and for the cir- 

 cumstance that its anterior (ventral) third is quite free from the liver and projecting 

 out a long way from its margin. It is very narrow and tubular, somewhat contracted 

 when it reaches the margin of the liver, and slightly distended beyond that. It is 

 placed transverse to the longitudinal axis of the body. The head of the pancreas is 

 close to the pyloric extremity of the stomach. The gland is closely adherent to the 

 posterior wall of the duodenum, and is narrow and band-like, contracting in extent 

 from left to right, and having a length of 3*50 inches. The anterior extremity is 

 the broadest portion of the lung and is rather deeply divided into two lobes. The 

 posterior end of the lung also terminates in a deep incision, the internal lobe being 

 moderately large and sac-like. The cloacal bladders are well developed and richly 

 clad with villous processes. The allantoic bladder is large, very delicate, and par- 

 tially divided, as is the case generally with the Emydidce. After the animal has been 

 kept for some time out of water and is then immersed, the allantoic bladder becomes 

 rapidly distended to a great size, with a clear, very pale, watery fluid. The clitoris is 

 a compact rosette of three pairs of external lobes, with a minute pair internal to the 

 most proximal pair and a small azygos eminence distal to the former, with a deep 

 pit beyond it, between the two terminal pairs of external lobes. There is a small 

 papilla on either side of the termination of the urinal groove, proximal and exter- 

 nal to the first pair of lateral lobes. The area of the clitoris is suffused with a dark 

 purplish-black pigment. 



Twenty specimens of this species have passed under my observation, and the 

 majority ahve. One from the Brahmaputra, four from Dacca in Eastern Bengal, and 

 the others from the Nerbudda and the Ganges at Allahabad and Eatehgarh. All 

 these last specimens are young, while two of the Dacca examples are adults, and one 

 adolescent. The species probably ranges up the Ganges to the base of the Hima- 

 laya, and it has a wide distribution through the Brahmaputra.^ I have not received 

 it from Burma, or Arracan, where it is represented by B. trivittata. The Batagur 

 referred to by Blyth under the name of B. dhongoka, as coming from these locali- 

 ties, and also by Gray, was doubtless B. trivittata. 



I kept two specimens alive in water for some time, and found that the younger 

 example (6 inches long) to which my observations were by force of circumstances 

 restricted, used to breathe every seven minutes. Its nostrils were simply pro- 

 truded above the surface of the water, and retained in that position for about 



* Griffith obtained specimens in Assam. 



