272 COLUBRIDJj;. 



belly yellowish, with large brown sjiots anteriorly, speckled with 

 brown posteriorly ; the outer ends of the veiitrals blackish, forming 

 a lateral stripe. 



Total length GlO millim. ; tail 115. 



China. 

 a. 2 (V. 140 ; C. ol). Chi Kiang. Mr. Fortune [C.]. (Type.) 



3. Pseudoxenodon inornatus. 



Xenodon iuornatus, Bote, Isis, 1827, p. 541 ; Schley. PJiys. Serp. ii. 

 p. 89, pi. iii. figs. 10 & 12 (1837) ; Jan, Arch. Zool. Anat. Phys. 

 ii. 18G3, p. 319, cmd Icon. Gen. 19, pi. v. tig. 2 (1866). 



Body stout, llostral broader than deep, just visible from above ; 

 internasals shorter than the pncfrontals ; frontal a little longer than 

 broad, as long as or longer than its distance from the end of the snout, 

 a little shorter than the parietals ; loreal deeper than long ; two or 

 three prie- and three postoculars ; temporals 2 + 2 or 2 + 3; eight 

 upper labials, fourth and fifth entering the eye ; four or five lower 

 labials in contact with the anterior chin-shields ; chin-shields broad 

 and subequal in size. Scales in 19 rows, dorsals keeled, laterals 

 smooth. Ventrals 118-121; anal divided; subcaudals 36-41. 

 Olive-brown above ; young with a /^-shaped black band on the 

 nape ; yellowish or brownish below, speckled with dark brown ; a 

 light streak separates the belly from the flanks. 



Total length 470 uiillim. ; tail 70. 



Java. 



14. HELICOPS. 



Pseudoeryx, part., Fifziiig. N. Class. Itept. ]). 29 (1826). 



Helicops," part., Wagler, Si/st. Amph. p. 170 (1830) : Jan, Arch. 



Zool. A?iat. Phys. "iii. 1865. p. 245. 

 Tropidonotus, part., Schley. Phys. Serp. ii. p. 297 (1837) : Dutn. >^- 



Bibr. vii. p. 549 (1854). 

 Homalopsis, part., Schler/. I. c. p. 332. 

 Ilelicops, Grail, Zool. Misc. p. 64 (1842), and Caf. Sn. p. 71 (1849) : 



Dum. L^- Bihr. t. c. p. 742 ; Giinfh. Ann. S,- May. A. H. (3) vii. 



1861, p. 425 ; Bouleny. Faun. Ind., Eeit. p. 352 (1890). 

 Dimades, part.. Gray, Zool. Misc. p. 65. 

 Urauops, Gray, Gal. Sn. p. 68. 

 Tacbynectes, Gray, I. c. p. 69. 

 Tropidiiphis (non D. Sf B.), Gray, I. c. p. 69. 

 Myron, part., Gray, I. c. p. 70. 

 Atretium, Cope, Proc. Ac. Philad. 1861, p. 299; Gi'inth. Bept. Brit. 



Ind. p. 272 (1864). 

 Limnophis, Giinth. Ann. ^- May. N. H. (3) xv. 1865, p. 96. 

 Liodvtes, Cope, Proc. Am. Philos. Soc. xxii. 1885, p. 194, and Proc. 



U.S. Nat. Mas. xiv. 1892, p. m6. 



Maxillary teeth 18 to 25, posterior longest ; mandibulnr teeth 

 subequal. Head not, or but slightly, distinct from neck ; eye 

 moderate or small, with round pupil ; nostrils directed upwards, in 

 a semidivided nasal ; a single internasal. Body rather stout, cylin- 



