i ii i 
3. CYLINDROPHIS. 135 
Torquatrix, part., Haworth, Phil. Mag. 1825, p. 372. 
Cylindrophis, Wagler, Icon. Amph. (1828), and Syst. Amph. p. 195 
(1830) ; Dum. §& Bibr. Erp. Gén. vi. p. 590 (1844) ; Gray, Cat. Sn. 
p. 111(1849) ; Giinth, Rept. Brit. Ind. p. 178 (1864); Jan, Icon, Gén. 
Ophid. Pp. 55 (1865) ; Bouleng. Faun. Ind., Rept. p. 249 (1890). 
Teeth moderate, subequal, 10 to 12 in each maxillary; none in 
premaxillary. Head small, not distinct from neck; eyes very 
small, with round or vertically subelliptic pupil, distinct from the 
neighbouring shields ; head with large symmetrical shields; nostril 
in a single nasal, which forms a suture with its fellow behind the 
rostral; no loreal or preocular; a small postocular; a mental 
groove. Body cylindrical; scales smooth, in 19 or 21 rows; ven- 
trals feebly enlarged. Tail extremely short and blunt. | 
Ceylon and South-eastern Asia east of the Bay of Bengal. 
Synopsis of the Species. 
1. Diameter of the eye about half its distance from the nostril ; 
interocular width more than the length of the snout. 
1. rufus, p. 135. 
Il. Diameter of the eye one third to one fourth its distance from 
the nostril; interocular width equal to the length of the snout. 
Parietals at least as large as the frontal.... 2. maculatus, p. 136. 
Parietals smaller than the frontal ........ 3. lineatus, p. 137. 
1, Cylindrophis rufus. 
An rufa, Laur. Si t. p. 71 (1768). 
snipe dul od er ii. pls. xxvii. & xxviii. (1801). 
—— corallina, Shaw, Zool. iii. oe sone (1802). 
Eryx rufus, Daud. Rept. ie P63 1803 
Tortrix rufa, Merr. Tent. (1820) ; Rote. Phys. Serp. ii oa 
a, figs. 1-3 (1837), pi Abbild, p. 111, pl. xxxiii. figs, 1 
844). 
Beytale scheuchzeri, Merr. 1. ¢. p. 91. 
Ilysia rufa, Lichtenst.. Verz. Doub p. 104 (1823). 
Cylindrophis resplendens, Wagl. Icon. Amph. p $s" fig. 1 (1828). 
a melanotan, 17 Wagl. l. c. (annot.) ; Bibr. vi. p. 502 
(1844); Gray, Cat, p. 111 (1849). 
— rufa, Gray, Zool. Misc. p. 46 (1842); Dum. §& Bibr. vi. p. 595 
(1844) ; Cantor, Cat. Mal. ee p- 53 (1847) ; , Cat. p. 111; 
Giinth. Rept. Brit. sind. p. 79 (1864) ; Jan, Tcun. Gén, p. 56, 
1. 9, pl. iv. + hee. | be 9 1865) ; Theob. Cat. . Brit. Ind. p . 127 
(1876); Anders. 2 Res. Yunnan, p. ‘(1879) ; Tovlong: 
Faun. Ind., Rept. p. 250, fig. (1890). 
Diameter of the eye about half its distance from the nostril ; the 
distance between the eyes greater than the length of the snout ; 
frontal at least as large as the supraocular, larger than the parietals, 
at least as long as its distance from the rostral; six upper labials, 
third and fourth entering the eye. Scales in 19 or 21 rows. Ven- 
trals not twice as large as the contiguous scales, 186-245; anal 
