53. zAocrs. oi I 



3. Zaocys luzonensis. (Plate XXVI. fig. 2.) 

 Zaocys luzonensis, Gimtli. Proc. ZooL Soc. 1873, p. 169. 



Rostral as deep as broad, visible from above : internasals shorter 

 than the prsefrontals ; frontal once and one third as long as broad, 

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

 the parietals ; loreal at least twice as long as deep ; one prseocular, 

 with a subooular below it ; two postooulars ; temporals 2 + 2 ; eight 

 upper labials, fourth and fifth entering the eye ; five lower labials 

 in contact with the anterior chin-shields, which are much shorter 

 than the posterior. Scales smooth, in 14 rows. Ventrals 205 ; 

 anal divided ; subcaudals 119. Pale olive-brown above, the scales 

 edged with black ; lower parts yellow, turning to dark olive 

 posteriorly. 



Total length 2500 millim. ; tail 650. 



Philippine Islands. 



a. tS (V. 205; 0. 119). Luzon. Dr. A. B. Meyer [0.]. (Type.) 



4. Zaocys carinatus. (Plate XXVIT. fig. 1.) 



Coryphodon carinatus, part., OUnth. Cat. p. 112 (1858). 

 Zaocys carinatus, Gunth. Rept. Brit. Ind. p. 256 (1864). 

 Ptyas korros, part., Blanf. Proc. Zool. Soc. 1881, p. 221. 



Rostral broader than deep, visible from above ; internasals shorter 

 than the praefrontals ; frontal a little longer than broad, as long as 

 its distance from the rostral, a little shorter than the parietals ; two 

 or three loreals ; one prseocular, with a subocular below it ; two post- 

 oculars ; temporals 2 + 2; nine upper labials, fifth and sixth enter- 

 ing the eye ; five lower labials in contact with the anterior chin- 

 shields, which are much shorter than the posterior. Scales in 16 

 or 18 rows, two or four middle rows keeled. Ventrals 208-215 ; 

 anal divided ; subcaudals 110-118. Brownish olive or blackish 

 anteriorly, with yellowish spots or irregular cross bands, yellowish 

 or pale brown posteriorly with a large deep-black network ; lower 

 parts yellowish anteriorly, black and yellow posteriorly. 



Total length 3o00 millim. ; tail 750. 



Borneo, Sumatra, Malay Peninsula. 



„. c? (V. 209; 0. P). Borneo. Sir E. Belcher [P.]. 



(Type.) 

 b. d (V. 215; 0.118). District of Deli, Su- Mr. Iversen [C.]. 



matra. 

 c c? (V. 208 ; 0. 110). Singapore. Dr. Dennys [P.]. 



d rT (V.208; C. 118). Perak. Dr. J. Anderson 



[P.]. 



