SNAKES. 175 



1. DlPSADOMORPHUS TRIGONATUS. 



Russell, Ind. Serp. i. t. 15. Coluber trigonalis, Schneider in 

 Bechstein's Uebers. Lacep. iv. t. 40. f. 1 ; Merr. Tent. p. 104. 

 Coluber sagittatus, Shaw, Gen. Zool. iii. p. 526. Coluber eate- 

 nularis, Daud. Rept. vi. pi. 75. f. 2. Dipsas trigonata, Boie, Isis, 

 1827, p. 559; Schleg. Ess. pi. 11. 16,7; Dim. Sf Bibr. vii. 

 p. 1136. Dipsadomorphus trigonatus, Fitzinger, Syst. Rept. 

 p. 27. 



Scales generally in twenty-one rows (exceptionally in nine- 

 teen) ; one loreal ; light yellowish brown, with a yellow, black- 

 edged, sometimes interrupted dorsal zigzag band ; the black 

 edges sometimes extending to the abdomen ; belly uniform yel- 

 lowish, with an irregularly punctated lateral line. 



a. Adult. India. From the Leyden Museum. 



b. Adult. India. 



c. Adult. India. 



d. Adult. India. Presented by W. Masters, Esq. 



e,f. Adult and half-grown : not good state. India. Presented 

 by W, Masters, Esq. 



g. Adult : discoloured. India. Presented by Dr. Russell. 



h. Young. India. 



i. Adult : injured. Bengal. Presented by the College of Sur- 

 geons. 



k. Half-grown. Bengal. Presented by General Hardwicke. 



I, m. Adult. Madras. Presented by J. E. J. Boileau, Esq. 



n. Adult : injured. Madras. Presented by J. E. J. Boileau, Esq. 



0. Young. Madras. Presented by J. E. J. Boileau, Esq. 



p. Young. Madras. Presented by J. E. J. Boileau, Esq. 



q. Nearly half-grown. Madras. Presented by J. C. Jerdon, Esq. 



r. Adult : bleached. India. Presented by Capt. P. P. King. 



s. Adult : tail injured. India. Presented by Mr. Hillier. 



t. Adult : greatly injured. India. Purchased. 



u. Adult : injured. India. Presented by J. Nimmo, Esq. 



v. Adult. India. From Mr. Warwick's Collection. 



Var. A. Dipsas gokool, Gray, Ind. Zool. pi. . f. 1. 



The dorsal band peculiarly modified : a yellow, straight, 

 vertebral line; on each side a row of black, erect, Y-shaped 

 marks. 



w. Adult. Bengal. Presented by General Hardwicke. Original 

 specimen of Dr. Gray's figure. 



Var. B. Belly checkered with black. 

 x. Adult. Tndia. 



