Dr. J. E. Gray on the Mud- Tortoises of India. 335 



broad. The alveolar surface of the lower jaw nearly flat, with 

 a very slight longitudinal ridge across the front end. 



Hob. Poonah {Dr. Leith). 



Dr. Leith gave the British Museum a stuffed specimen and 

 a perfect skeleton of this species. 



The head of the dried specimen, unfortunately, does not show 

 any distinct indication of colom* by which to distinguish it ; 

 but Mr. Charles Waterhouse thinks he can observe some ob- 

 scure indications of olive stripes radiating from a centre in the 

 hinder part of the crown. The skeleton is mentioned by 

 mistake in the 'Supplement to the Catalogue of Shield Reptiles' 

 (p. 102) under Asjyilus cariniferus'^ and Dr. Gtinther had given 

 this name to both specimens ; it has four well-developed 

 callosities to the sternum. 



The skull is rather short and narrow ; the nose shelving to 

 the forehead, with a rather tapering outline. Eyes a very 

 short distance from the cavity of the nostrils, not half as long 

 as the diameter of the orbits. Alveolar surface of the lower 

 jaw broad, very slightly concave, with a very indistinct central 

 ridge in front, most elevated in the middle of the front central 

 portion of the alveolar surface. The centre of the front edge 

 of the lower jaw of the skeleton marked with a deep notch ; 

 but this may be only an individual peculiarity, because there 

 is no indication of it in the stuffed specimen. 



tt Croivn of the head olive, closely and minutely ■punctured with 



black. 



3 . Trionyx peguensis . 

 Trionyx peguensis, Gray, Cat. Shield Rept. p. 99. 

 Hob. Pegu. Head and skull only known. 

 This is a large species. The skull has a broad palatal 

 groove to the nostrils. 



ttt The hinder part of the crown and sides of the head marked 

 ivith pale spots. 



4. Trionyx huruni. (The Kaavez.) 

 Crown of the head varied with irregular black lines, a 

 yellow spot on each side of the crown and at the back angle 

 of the mouth. 



" Kaavez," Hardwicke, icon, ined. B. M. 



Trionyx hnrmn, Gray, Synopsis Rept. tab. x. (copied from Hardwi.cke) ; 



111. lud. Zool. tab. (copied from Hamilton). 

 Testudo huruvi and T. chin, Hamilton, icon. ined. 

 ? Trionyx Jeudi, Gray, P.Z.S. 18(39, p. 217, fig. 19; Suppl. Cal. Shield 

 Rept. p. 97, fig. 32 (skull). 



Hardwicke figures a second species, under tlie name of 



