the interorbital region and on the occiput polygonal, with 

 eccentric tubercles. Rostral broad and low; nostril lateral, in 

 an elongate scale, which is separated from the rostral by a 

 smaller one. Tympanum half the diameter of the eye. Seven 

 or eight upper and seven lower labials. Body compressed, 

 covered with longitudinal series of rhomboidal smooth scales; 

 a low dorsal crest; ventral scales strongly keeled. Tail much 

 compressed, covered below with two longitudinal series of 

 long, keeled scales. Limbs with keeled scales; the hind ones 

 pressed against the body, reach the ear; first finger shortest, 

 second longer than fifth, fourth about as long as third ; first 

 toe shortest, second half the length of the third, which is 

 equal to the fourth; claws sharp. 



Bluish-green above ; on each side of the body two yellowish 

 bands, one beginning with a spot above the ear and running 

 obliquely along the neck and shoulder ; the other, beginning 

 at the lores, is continued below the eye and ear as far as the 

 neck and begins again at the base of the fore limb. Two 

 large dark spots on the flanks. Length of head and body 

 (without rostral appendage) 86 mm.; tail 164 mm.; rostral 

 appendage 10 mm. 



Habitat: Sumatra (Lubu Selassi near Padang). I have 

 examined a specimen with the indication "Indes Neerlandaises" 

 in the Paris Museum. 



3. Harpesaurus ensicauda Werner. 



Harpesaurus ensicauda, Werner, Mitt. Naturh. Mus. Hamburg XXX 1913, p. 8. 



Rostral appendage shorter than the head, curved backwards, 

 surrounded at the base by two enlarged scales. Head with 

 rather large scales, largest on the occiput, those on the snout, 

 the interorbital region and the upper eyelid keeled ; canthus 

 rostralis rounded. Gular scales smooth or indistinctly keeled. 

 Body compressed; no dorsal crest; dorsal scales smooth, rather 

 large, arranged in transverse series; ventral scales smooth. 

 Tail strongly compressed, with a denticulated crest above, 

 covered with keeled scales. Limbs covered with keeled scales. 



Brown above; upper lip, throat and breast whitish. Length 

 of head and body (without rostral appendage) 60 mm., tail 

 60 mm. (After Werner, not seen by me). 



Habitat: Nias, 



Only one male specimen known, 



