298 COLTJBRID.i:. 



Synopsis of Indian^ Ceylonese, and Burmese Species. 



Scales in l^"! rows ; one or two praeoculars H. nymphn, p. 298. 



Scales in lo rows ; one pifcocular II, yi-acilis, p. 298. 



Scales in 13 rows ; no pragocular H. daiisonii, p. 299. 



357. Hydrophobus nymplia. 



Russell, Lid. S'crp. i, pis. xxxvi, xxxvii. 



Coluber nympha, Baud. liept. vi, p. 244, pi. Ixxv, fig. 1. 



Lycoclon nympha, Boie, Isis, 1827, p. 522. 



Odontomiis nympha, Bum. ij- Bihr. Erp. Gen, vii, p. 450 ; Gnnth, 



Rept, B, /.'p. 2.30; Jan, Icon, Ophid. 38, pi. v, fig. 2; Theob. Cat. 



p. IGO. 

 Hydrophobus seuiifasciatus, Gi'inlh. A. M. N. II, (3) ix, 1802, p. 127, 



pi. ix, fig. 6, 

 Odontomus semifasciatus, Gilntli. Rept, B, I. p. 234 ; Theob. I. c. 

 Odontomus nympha, var. ceylonensis, F. Midi. Verb, ned. Ges, Basel, 



viii, 1887, p. 209. 



Eostral not twice as broad as deep, visible from above ; nasal 

 entire or divided ; suture between the interuasals usually as \on^ 

 as that between the prefrontals, or a little shorter ; frontal longer 

 than its distance from the end of the snout, shorter than the 

 parietftls ; loreal longer than deep, usually enteriug the eye; one 

 or two praeoculars ; two postoculars ; temporals 2 + 2 or 2 + 3; 7 

 (exceptionally 8 or 6) upper labials, third and fourth entering the 

 eye ; 3 or 4 labials in contact with the anterior chin-shields, \\'hich 

 are longer than the posterior. Scales in 13 rows, Ventrals 200- 

 243; anal di\dded ; subcaudals 71-88. Whitish, with or without 

 small brown spots, and with large elliptic dark brown or black 

 spots much longer than the interspaces between them ; a large 

 brown spot nearly covers the np])er surface of the head, and is 

 separated from the first dorsal spot by a narrow white occipital 

 band ; upper lip and lower parts uniform white. 



Total length 18 inches ; tail 3-5. 



Hah. tSouthern India and Ceylon. 



358. Hydrophobus gracilis. 



Odontomus gracilis, Gilnth. Rept. B, I, p. 234 ; Theoh. Ccd. p. IGO. 

 Odontomus fergusonii, Iluly, Taprolanian, iii, 1888, p. 51. 



Eostral twice as broad as deep, just visible from above ; nasal 

 semidivided ; suture between the iuternasals as long as that 

 between the prjefrontals ; frontal longer than its distance from the 

 end of the snout, shorter than the parietals ; loreal longer than 

 deep, entering the eye, separated from tbe supraocular by a small 

 prajocular ; two postoculars; temporals 2 + 3; 7 upper labirds, 

 third and fourth entering the eye; 4 lower labials in contact 

 witli the anterior chin-shields, which are longer than the ]30sterior. 

 Scales in 15 rows. Yentrals 200-234; anal entire; subcaudals 

 75-83. Whitish, each scale brown in the centre, with large 



