60. COLTTBEH. 63 



from both in the more numerous scales, viz., in 21 rows on the 

 body and 23 on the neck. Scales less strongly keeled than in 

 C. melanurus, more as in G. radiatus; the outer row of caudal 

 scales smooth or very faintly keeled. Loreal usually not or but 

 slightly longer than deep ; fourth to sixth upper labials entering the 

 eye. Ventrals 211-233; anal entire; subeaudals 86-100. No 

 dorsal stripes. 



Total length 1670 miUim. ; tail 370. 



Philippines, Sooloo Islands, Celebes. 



A. Pale brown or olive above, the scales edged with blackish ; 



a more or less distinct oblique dark streak behind the eye, and 

 another (often absent) on each side of the neck. (C. erythrurus, 

 D. & B. ; manillensis, Jan.) 



a. Lower parts yellow, iisually turning to red posteriorly and on 



the tail. 



a, b, c. S (V. 217, 228 ; Philippines. H. Cuming, Esq. [0.]. 



C.87,?)&yg. (V.225; 

 C. 95). 



d. $ (V. 233 ; 0. ?). Luzon. Dr. A. B. Meyer [0.1. 



e. d (V. 221 ; 0. ?). N. Leyte. A. Everett, Escl. [C.]. 



b. Upper and lower parts turning to blackish posteriorly; tail 



black. 



/. S (V. 226 ; 0. 97). Negros. Dr. A. B. Meyer [C.]. 



B. Brown above, reddish anteriorly ; no lines or spots on the head ; 



a large V- OJ" X"®^^?^*^ black marking on the neck ; young 

 with black vertical bars on the sides. (C. celebensis, Jan.) 



a. Lower parts bright yellow ; posterior part of belly and tail 



speckled with brown. 



a-b. c? (V. 222 ; 0. 96) & Macassar. Dr. A. B. Meyer [C.]. 



yg. (V.225; C. 100). 



b. Tipper and lower parts turning to black posteriorly. 



c. cJ (V. 216 ; C. 96). Celebes. 



d, e. 2 (V. 228, 232; N.Celebes. Dr. A. B. Meyer [C.]. 

 C.?, 90). 



/. cJ (V. 223 ; C. 98). Manado. Dr. A. B. Meyer [C.]. 



38. Coluber enganensis. 



Coluber enganensis, Vinciguerra, Ann. Mus. Genova, (2) xii. 1892, 

 p. 524. 



Intermediate between O. erythrurus and C. suhradiatus. Differing 

 from the former in the more numerous scales, viz. 23 rows on the 

 body and 27 on the neck ; from the latter in the absence of a sub- 

 ocular separating the fourth labial from the eye, the deeper rostral. 



