28/ 



Head very broad; snout short and broad, with rather distinct 

 canthus; eye very small. Rostral as broad as deep or a little 

 more broad; nasal entire; scales on the head small, keeled; supra- 

 ocular narrow or broken up; internasals sometimes indistinct; 

 7 — 13 scales between the supraoculars; one to three postocu- 

 lars ; a subocular, separated from the labials by one or two 

 series of scales, sometimes in contact with the third labial; 

 eight to ten upper labials, second not bordering the loreal pit, 

 third very large; temporal scales keeled; gular scales keeled. 



Fig. 117. Lachesis wagleri (Boie). 



Scales keeled, in 21 — 25 (19 or 27) rows; ventrals 127 — 154; 

 anal entire; subcaudals 45 — 56, in two rows; tail prehensile. 



Green above, the scales black-edged, with bright yellow, 

 black-edged transverse bands (fig. 117, upper snake), or black 

 with yellow transverse bands, or green above with large red, 

 black-edged spots; head black, yellow-spotted. Lower surface 

 yellow or greenish, the ventrals black-edged, or white with 

 black spots and powdered with red; end of tail black or red. 

 Young specimens green, with yellow or white transverse lines, 

 edged with blue or purple posteriorly (fig. 117, lower snake), 

 or with two series of small spots on the back; a light line on 

 each side of the head, passing through the eye and edged 

 below with blue or purple. Lower parts white or green, uniform 

 or with black borders to the scales; end of tail red or reddish- 

 brown. Length of head and body 830 mm.; tail 150 mm. 



Nom. in dig. Ular nanti bulau (mal.); djalimoo (Toradja-name). 



