340 BURMA, ITS PEOPLE AXD PRODUCTIOXS. 



Famili/ Chitridee, 



Girtilaginotis river turtles, with weuk jaws. 



CuiiKA, Gray. 



Head elongate, eyes placed very forward. Tlie semidianictcr of the sluill across 

 the mandibular condyles is contained more than throe times in the distance between 

 the occipital condyle and the palatal opening of tlie nostrils. 



C. IxBicA, Gray. 



Colour dark olive brown, lineatcly marbled. Below yellowish white. Xo ocelli 

 in the young. Grows to 240 lbs. 



Inhaliits the Irrawaddy and other rivers and estuaries of Burma. This savage 

 and dangerous creature can bo distinguislied from all other ' soft ' turtles, except the 

 next species, by its weak lower jaw, and from PcIochcJijs by the proportions of the head. 



Pelochelts, Gray. 



Head short. Eyes placed very forward. The semidiameter of the skull across 

 the mandibular condyles is contained twice only between the occipital condyle and 

 the palatal opening of the nostrils. 



P. Caxtokii, Gray. 



Ecsembles Chitra externally very closely, but is a smaller species, and but little 

 known. Ranges probably the same as Chitra. TickeU gut it at Akyab, and the 

 British Museum possesses a specimen from Borneo. 



Fa III III/ Trionycidae. 



Cartilaginous river turtle, with stroug jaws. 

 Trionyx, Geoffroy. 



T. STELLATUS, Gooff. 



Shell brown, with vermiculate markings in the young. Head and neck grey, 

 profusely yellow mottled. 



Inhabits Pegu and Tenasserim. 



T. Phayiiei, Theobald. 



Adults brown, handsomely vermiculatod. Head and neck handsomely marbled 

 with subreniform markings. 



Inhabits Pegu, Tenasserim, and the Malayan Peninsula. 



T. FOEMOsrs, Gray. 



Young only known, perhaps tlie young of the last. 



T. Pegurnsis, Gray. 



Head of adult pale olive-green, minutely and closely punctulated with black. 



Inhabits the Tsittoung. 



T. Gkayii, Theobald. 



Head mottled as in T. Phayrei, but the sternal callosities much more developed. 

 Type immature (10 inches). 



Inhabits Pegu. 



The whole of the above species belong to that section of the genus which has 

 tlie mandible inside traversed by a median ridge. Trionyx Ganyelicus, on the other 

 hand, and all the Bengal species, have the .same part smooth, or traversed by a median 

 furrow. T. Gnngeticus, from Burma, is probably T. Phayrei, but this is not settled. 

 All the species probably grow to a large size. 



Dr. Anderson, in reviewiaig the various species of Burmese Trionyees in liLs 

 Zoology of Yunnan, p. 786, falls into some serious misconceptions of my views, 

 which "it is as widl to correct. First of all Dr. Anderson, speaking of T. Gratjii, Th. 



