272 COLUBEIDiE. 



belly yellowish, with large brown spots anteriorly, speckled with 

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

 a lateral stripe. 



Total length 610 millim. ; tail 115. 



China. 

 a. $ (V. 140 ; C. 51). Chi Kiang. Mr. Fortune [C.]. (Type.) 



3. Pseudoxenodon inornatus. 



Xenodon inovnatus, Bote, Isis, 1827, p. 541 ; Snhleg. Phys. iSerp. ii. 

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

 ii. 1863, p. 319, and Icon. Oin. 19, pi. v. fig. 2 (1866). 



Body stout. Eostral broader than deep, just visible from above ; 

 internasals shorter than the praefrontals ; 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 prae- and three postooulars ; 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; subeaudals 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 millim. ; tail 70. 



Java. 



^ 14. HELICOPS. 



Pseudoeryx, part., Fitzing. N. Class. Pept. p. 29 (1826). 



Helicops, part., Wagler, Syst. Amph. p. 170 (1880) ; Jan, Arch. 



Zool. Anat. Phys. iii. 1865. p. 246. 

 Tropidonotus, part., Schley. Phys. Serp. ii. p. 297 (1837) : Dum. ^ 



Bihr. vii. p. 649 (1864). 

 Homalopsis, part., Schleq. I. c. p. 332. 

 Helicops, Oray, Zool. Misc. p. 64 (1842), and Cat. Sn. p. 71 (1849) ; 



Bum. 8f Bibr. t. c. p. 742 ; Gilnth. Ann. S,- Mag. N. H. (3) vii. 



1861, p. 425 ; Bouleng. Faun. Ind., Bept. p. 352 (1890). 

 Dimadea, part., C^ray, Zool. Misc. p. 65. 

 Uranops, Gray, Cat. Sn. p. 68. 

 Tachynectes, Gray, I. c. p. 69. 

 Tropidophis (non D. Sp B.), Gray, I. c. p. 69. 

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

 Atretium, Cope, Proc. Ac. Philad. 1861, p. 299 ; Giinth. Rept. Brit. 



Ind. p. 272 (1864). 

 Limnophis, Giinth. Ann. %■ Mag. N. S. (3) xv. 1865, p. 96. 

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



U'S. Nat. Mm. xiv. 1892, p. 666. 



Maxillary teeth 18 to 25, posterior longest ; mandibular 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- 



