Habitat: from Southern Mexico to Colombia, Venezuela, and Brazil.
(15) L. brachystoma.—Similar to the foregoing species; scales in 23 (rarely 25) rows; 132-150 ventrals; 27-38 subcaudals.
Total length, 500 millimetres; tail 50.
Habitat: Southern Mexico and Central America.
(16) L. bilineatus.—Snout rounded; 7 or 8 supralabials; scales in 27-35 rows, strongly keeled; 198-218 ventrals; 59-71 subcaudals, all or majority in two rows. Tail prehensile.
Colour green, uniform or spotted with black; a lateral yellow streak; belly white; end of tail reddish.
Total length, 840 millimetres; tail 125.
Habitat: Brazil, Bolivia, Peru, Ecuador.
(17) L. undulatus.—Snout short, rounded; 11 supralabials; scales in 21 rows, the dorsals strongly or very strongly keeled; 149-171 ventrals; 41-49 pairs of subcaudals. Tail prehensile.
Colour olive or brown, sometimes speckled with black, with a dorsal series of rhomboidal dark spots or an undulous or zigzag band; belly yellowish or brownish, powdered with blackish.