16 REPTILES. 



The Thick-necked Emys. Emys crassicollis, Bell MSS. in 

 Gray, Syn. 21, t. 7, f. 3. Must. Ind. Zool. t. 9, /. 2. Dum 8f 

 Bib. E. Gen. ii. 325. E. Spengleri, var., Schlegel, F. Japon. 51. 



Shell ovate, oblong, rather convex, revolute on the sides and 

 deeply toothed behind, black, slightly three-keeled ; keels close ; 

 first vertebral plate elongate, six-sided ; sternum flat, pale, and 

 keeled on the sides ; head and neck thick, black. 



a. Shell only. 4^ inches long. Sumatra. Presented by Thomas 



Bell, Esq. 



b. Animal and shell, half grown, in spirits. Sumatra. From the 



Ley den Museum. 



The Three-keeled Emys. Emys trijuga, Schweig. Prod. 

 310. Dum. $• Bib. Erp. Gen. ii. 310. E. Belangeri, Lesson, 

 Vol/. Ind. 291. Testudo scabra, Shaiv, Zool. iii. 55, from Seba. i. 

 126, t. 79, /. 1,2. 



Shell convex, oval, brown, three-keeled ; keels rather inter- 

 rupted, margin slightly toothed ; shields rugose ; areola marginal, 

 posterior, rugose ; sternum rather convex on the sides, blackish ; 

 head brown, with a yellow streak over each eye ; jaws yellow varied. 



a. Animal and shell. Under side of marginal shield, and edge 



of sternum yellow. Compared with specimens in the Paris 

 Museum. Presented by J. E. Gray, Esq. 



b. Shell. Under side of margin and edge of sternum black. 

 India. From the Vienna Museum. 



" Emys Hermanni,'' Schiv. ? Mus. Vienna. 



B. Vertebral plate broad, 6-sided. Asiatic. 



The Flat-backed Emys. Emys platynota, Gray, Proc. 

 Zool. Soc. 1834. Must. Ind. Zool. t. 



Shell ovate, convex, yellow dotted, with the centre of the back 

 quite flat, as if truncated ; shields striated, nucleus central ; ver- 

 tebral shields broader than long, 6-sided, 5th keeled ; the front 

 and hinder margin strongly toothed ; sternum flat, truncated be- 

 fore, and slightly nicked behind ; tail moderate, tapering. 



a. Adult. Sumatra. 



The Kachuga. Emys lineata, Gray, Syn. 23. Dum Sr Bib. 

 E. Gen. ii. 335. Testudo kachuga, B. Hamilton, MSS. cop. 

 Emys k. Must. Ind. Zool, t. 74. E. tectum, var., Schlegel, F. 

 Japon. 51. 



Shell oblong, olive,smooth,tubercularly keeled ; vertebral shields 

 quadrate, 3rd broadest, 2nd and 4th longest, six-sided ; margin 

 dilated, behind entire ; sternum yellowish, truncated before and 

 behind, slightly keeled on the sides ; head bluish-ash ; cheek and 

 chin yellow-varied ; eye-brow and nape scarlet lined ; chin with 

 two yellow spots ; tail long. 



Inhabits India. From Dr. Buchanan Hamilton's drawings. 



