13. rSEUDOXENODOX. 271 



deep or deeper than long ; one praeocular ; three postoculars ; tem- 

 ])orals 2-1-2 : eight iipjier labials, fourth and fifth entering the eye ; 

 four or five lower labials in contact with the anterior chin-shields, 

 which are a little shorter than the posterior. Scales more or less 

 strongly keeled, in 19 rows anteriorly, in 17 on the middle of the 

 body. Ventrals 15S-17;3; anal divided; subcaudals5o-75. Erowu 

 or olive above, with or without a dorsal series of reddish-brown or 

 orange spots and a dorso-lateral series of black spots ; a more or 

 less distinct chevron-shaped dark marking, pointing forwards, may 

 be present on the nape ; anterior part of belly with large quadran- 

 gular blackish-brown spots, posterior part and lower side of the 

 tail clouded with brown. 



Total length 9!)0 millira. ; tail ISO. 



Himalayas, Khasi Hills, hills of S.W. China and Burma. 



a. 2 (V. 164 ; C. 63). Nepal. B. II. Hodgson, Esq 



[P.]. 

 b-d. S (V. 173, 160; Darjeeling. T. C. Jerdon, Esq. 



C. 73, 68) & ? (V. lUo ; \V.l 



0. 68). 

 e-f. (S (V. 10(3; C. ?) Darjeeling. W. T. Blanford, Esa. 



& vg. (V.160; C.o7). [P.]. 



ff. 2 (V. 172; C.?). Sikkim. Messrs. v. Scblao'in- 



tweit [C.]. 

 //. $ (Y. ca. 175; C. 69). Sikkim. Sir .J. Hooker [P.l. ) 



i-k. cT (V. 164; C. ?) & Khasi Hills. Sir.!. Hooker [P.]. i 



2 (V. 167 ; C. 60). (Tvpes of X macrophthalmm.) \ 



I. 2 (V. 172 ; C. OoJ. Khasi Hills. " T. C. Jerdon, Esq. 



[P.]. 

 m-n. 2 (V. 158, 158; Kia-tiancr-fu, Pro v. A. E. Pratt, Esq. 



C. ?, 55). Sze Chuen, 1070 feet. [C.j. 



2. Pseudoxenodon dorsalis. (Plate XVII. fig. 2.) 



Xenodon macrophtlialinus, part., Giinth. Cat. p. 58 (1858). 

 Tropidonotus dorsalis, Giinth. liejjt. Brit. Ind. p. 263 (1864). 



Rostral broader than deep, just visible from above ; internasals 

 a little shorter than the pnefrontals ; frontal a little longer than 

 broad, as long as its distauce from the end of the snout, shorter 

 than the parietals ; loreal deeper than long ; one prpc- and two or 

 three postoculars; temporals 2 -f- 2 ; eight upper labials, fourth and 

 fifth entering the eye; four lower labials in contact with the 

 anterior chin-shields, which are shorter than the posterior. Scales 

 feebly keeled on the back, smooth on the sides, in 17 rows ante- 

 riorly, in 15 round the middle of the body. Ventrals 140 ; anal 

 divided ; subcaudals 51. Brownish grey above, with a dorsal series 

 of pale yellowish (reddish) transverse spots; upper surface of tail 

 with a yellowish, black-edged stripe ; a /^-shaped blackish band on 

 the nape, confluent with a more indistinct one on the back of the 

 head ; a blackish band from rhe eye to the angle of the mouth ; 

 upper lip yellowish, the labials with fine black lines at the sutures ; 



