10. TROPIDONOTTTS. 251 



a-d. S (V. 180, 181, 181 ; Loo Choo Islands. 11. Pryer, Esq. rP.1, 



C. 12],?,128)& 2 (V. (Types.) 



176; C. ?). 



e-f. $ (V. 177 ; C. 114) k Great Loo Choo Island. Mr. Hoist [CI. 

 ■yg. (V. 171 ; C. 118). 



55. Tropidonotiis himalayanus. 



Xenodon macroplitbalmus, part., G'dnth. Cat. p. 58 (1858). 

 Tropidonotiis macrophtli alums, part., Giinth. Rent. Brit. Ind. p. 262 



(18G4). ^ 

 himalayanus, Giinth. I c. p. 265, pi. xxii. fig. H ; A7iders. 



Proc. Zool. Soc. 1871, p. 178; Stoliczka, Journ. As. Soc. Beng. 



xl. 1871, p. 434; Botdeng. Faun. Ind., Bept. p. 347 (1890) ; W. 



L. Sclater, Journ. As. Soc. Beng. Ix. 1891, p. 240. 



Eye rather large. Eostral broader than deep, just visible from 

 above ; internasals about as broad as long, broadly truncate in front, 

 as long as or a little shorter than the praefrontals ; frontal about 

 once and a half as long as broad, as long as or slightly longer than 

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

 the parietals ; loreal as long as deep or a little deeper than long ; 

 one (rarely two) prce- and two or three postoculars ; temporals 

 2 + 2 or 2+3 (rarely 1 + 1); eight (rarely nine) upper labials, 

 fourth and fifth (or fifth and sixth) entering the eye ; four or five 

 lower labials in contact with the anterior chin-shields, which are 

 shorter than the posterior. Scales in 19 rows, strongly keeled, of 

 outer row smooth or feebly keeled. Ventrals 158-170 ; anal 

 divided; subcaudals 79-90. Olive above, with small dark spots 

 and two longitudinal series of small whitish spots or narrow cross 

 bars ; a more or less distinct blackish blotch on the nape, separated 

 from the head by a yellow or orange collar, which is usually inter- 

 rupted on the middle line : upper labials yellowish, with black 

 sutures ; lower parts yellowish, speckled with brown or black, or 

 nearly entirely greyish olive or blackish. 



Total length 830 millim. ; tail 200. 



Eastern Himalayas and Assam TTills. 



a. 2 (V. 170 ; C. ?). Nepal. B. H. Hodgson, Esq. [P.]. I 



6. $ (V. 170; C. 86). Sikkim. Messrs. v. Schlagintweit [C.]. i 



(Tvpes.) 

 e. Yg. (V.168; C.88). Sikkim, 4000 ft. Sir J. Ilooke'r [P.]. 



(One of the tvpes of X. macrophthalmus.) 

 dr-f. 2 (V. 168, 164 ; Dai-jeeling. T: C. Jerdon, Esq. [P.]. 



C. 82, 88) & yg. (V. 

 158 ; C. 89). * 

 g. S (V. 166; C. ?). Darjeeling. W. T. Blanford, Esq. [P.l. 



h. S (V. 160 ; C. 79). Khasi Hills. Sir J. Hooker [P.]. 



(One of the tvpes of A', macruphthahnm.) 

 i. S (V. 162; C. 82). Khasi Hills. T. C. Jerdon, Esq. [P.]. 

 k. Yg. (V. 166; C. 86). Assam Hills. W. T. Blanford, Esq. [P.]. 

 I. cf (V. 172 ; C. 92). Assam. 



