126. CEHBEEtJS. 15 



.■scale-like ; ten to twelve upper labials, fifth, or sixth, entering the 

 *ye or narrowly separated from it by subooulars ; two or three 

 pairs of chin-shields in a transverse row, inner in contact with .the 

 three first lower labials. Scales in 37 to 47 rows. Ventrals 

 160-171 ; anal divided ; subcaudals 70-90. Above with broad 

 transverse dark brown, black-edged cross-bands separated by narrow 

 pale brown interspaces, which are whitish in the young ; head pale, 

 with a triangular or V-shaped dark brown mark on the snout, a 

 /^-shaped mark on the vertex, and a dark brown band on each side, 

 beginning in front of and passing through the eye ; beUy whitish, 

 with a series of dark brown spots along each side ; tail brown- 

 spotted inferiorly. 



Total length 1050 millim. ; tail 230. 



Bengal (?), Burma, Indo-China, Malay Peninsula, Sumatra, 

 Borneo, Java. 



.a. S (Sc. 41 ; V. 164; C. 83). India (?). Gen. Hardwicke [P.]. 



(Type of a. hardwickii.) 

 b, c, d. Yg. (Sc. 37, 41, 41 ; Bengal (P). G'en. Hardwicke [P.]. 



V. 162, 160, 160; C. 82, 



85, 78). 

 e. ? (Sc. 47 ; V. 169 ; C. ?). Oamboja. M. Mouhot [0.]. 



f-h. (J (Sc. 41 ; V. 168 ; 0. Pinang. Dr. Oantor. 



88) & yg. (Sc. 39, 40 ; V. 



163,164; C. 90, 86). 

 i-l. Yg. (Sc. 41, 39, 37 ; V. Singapore. Dr. Dennys [P.]. 



165, 167, 161 ; C. 85, 85, 



76). 

 m. d (Sc. 40; V. 168; C. 77). Labuan. L. L. Dillwyn,Esf(.[P.l. 



n. $ (Sc. 37 ; V. 160 ; C. 71). Java. Leyden Mus. 



o. Yg. (Sc. 39; V. 162 ; 0. 81). Batavia. 

 i)-?. $ (Sc. 45; V. 167; 0. .*> Haslar Collection. 



85) & yg. (Sc. 45 ; V. 170; 



C. 86). 

 r. SkuU. Malacca. 



126. CERBERUS. 



Hydras, part., Schndd. Syst. Amph. i. p. 233 (1799). 



Cerberus, Cuv. Mhgne Anim. 2nd ed. ii. p. 81 (1829) ; Gray, Zool. 



Misc. p. 64 (1842), and Cat. Sn. p. 63 (1849) ; Bum. ^ Bibr. Erp. 



Gen. vii. p. 977 (1854) ; Giinth. Kept. Brit. Ind. p. 278 (1864) ; 



Bouteng. Faun. Ind., B^t. p. 374 (1890). 

 Homalopsis, part., Schleg. Phys. Serp. ii. p. 332 (1837) ; Jan, Arch. 



Zool. Anat. Phys. iii. 1865, p. 256. 



Maxillary teeth 12 to 17, followed, after a very short interspace, 

 ty two slightly enlarged, grooved teeth ; anterior mandibular teeth 

 longest. Head small, not very distinct from neck; eye small, 

 with vertically elliptic pupil ; snout covered with shields ; parietal 

 shields more or less broken up into scales ; nasals in contact 

 l)ehind the rostral, semidivided, the cleft extending from the nostril 

 to the first or second labial ; two internasals (rarely united) ; loreal 



