300 COLTJBRID^. 



a-e. S (V. 113, 115 ; C. 30, 32), Darjeeling. T. C. Jerdon, Esq. [P.]. 



$ (V, 125; C. 29), & yg. (Ty^es, oi Ahlabes albiventer.) 



(V. 128, 135 ; C. 32, 30). 

 f-i. c? (V. 117; C. 34), $ (V. Darjeeling. T. C. Jerdon, Esq. [P.]. 



12.3, 125 ; C. 28, 28), & vg. 



(V. 119; C. 31). 



5. Trachischium ? rubriventer. 



Cyclophis rubriventer, Jerdon, Proc. As. Soc. Beng. 1870, p. 80 ; 



Theob. Cat. Reiit. Brit. Incl. p. 159 (1876). 

 Trachischium ? rubriventer, Bouleng. Faun. Ind., Bept. p. 280 (1890). 



One prse- and two postoculars ; six upper labials, the last three 

 subeqiial in size; temporals 1 + 1. Scales in 15 rows. Ventrals 

 127-135; subcandals 33-38. Brown, with a pale lateral band 

 from the eye to the tip of the tail ; below this, a mottled brown 

 and yellowish band ; chin, throat, and anterior part of neck yellow, 

 the rest of the lower parts red. 



Total length 200 millim. ; tail 30. 



Khasi Hills. 



25. RHABDOPS. 



Ablabes, part., Gilnth. Bept. Brit. Ind. p. 223 (1864). 



Grotea (7io7i Cress.), Theob. Cat. Re^Jt. As. Soc. Mus., Journ. As. Soc. 



Beng. 1868, p. 45. 

 Pseudocyclophis, part., Boideng. Faun. Ind., Rept. p. 299 (1890). 



Maxillary short, but extending beyond the palatine, with 10 to 

 12 small and subequal teeth ; mandibular teeth subequal. Head 

 small, much depressed, not distinct from neck : eye very small, with 

 vertically subelliptic pupil ; nostril in a semidivided nasal. Body 

 much elongate, cylindrical ; scales smooth, without apical pits, in 

 17 rows ; ventrals rounded. Tail rather long ; subcaudals in two 

 rows. Hypapophyses developed throughout the vertebral column. 



India, Southern China. 



1. Rhabdops olivaceus. (Plate XIX. fig. 2.) 



Ablabes olivaceus, Beddome, Madras Quart. Journ. Med. Se, 1863 ; 



Gilnth. Bept. Brit. Lid. p. 227 (1864). 

 Pseudocyclophis olivaceus, Bouleng. Faun. Ind., Rept. p. -300 (1890). 



Rostral large, twice as broad as deep, visible from above ; nasal 

 divided below the nostril ; suture between the internasals shorter 

 than that between the prsefrontals : frontal only a little if at all 

 longer than broad, three or four times as broad as the supraocular, 

 much longer than its distance from the end of the snout and a little 

 shorter than the parietals ; loreal longer than deep ; two prae- and 

 two postoculars ; temporals 1 + 1 ; five upper labials, third entering 

 the eye, fifth very large ; four lower labials in contact with the 

 anterior chiu-shields ; posterior chin-shields nearly as long as the 



