ii8 



white. Lower surface white. Length of head and body 920 mm.; 

 tail 230 mm. 



Type-specimens examined in the British Museum. 



Habitat: New Guinea (Bongu). — Ferguson Island!. 



6, Stegonotus diehli Lindholm. 



Stegonotus diehli^ Lindholm, Jahrb. Nassau Ver. LVIII 1905, p. 236. 



Rostral much more broad than deep, just visible from above; 

 internasals shorter than the praefrontals; frontal longer than 

 its distance from the tip of the snout, shorter than the parietals; 

 loreal not quite one time and a half as long as deep; one or 

 two praeoculars, the upper separated from the frontal; two 

 postoculars; temporals 2 + 2; seven upper labials, third and 

 fourth entering the eye; four lower labials in contact with the 

 anterior chin-shields; latter as long as the posterior. Scales 

 in 15 rows; ventrals 167 — 183; anal entire; subcaudals 

 75 — 112 pair. 



Dark brownish-grey above, lighter on the sides; a whitish 

 .spot on the praefrontals near the outer border; hindborder 

 of the internasals, suture between the parietals and suture 

 between parietals and frontal and supraocular whitish; a short 

 oblique whitish streak on the posterior part of the parietals; 

 upper lip whitish, with round grey spots on the sutures; a 

 narrow whitish collar, interrupted in the middle and continued 

 anteriorly on the temporal region, which is grey-spotted. Lower 

 surface whitish, sutures between the subcaudals greyish. Length 

 of head and body 415 mm.; tail 125 mm. 



Habitat: New Guinea (Bogadj im on Astrolabe Bay, Kaiserin- 

 Augusta river!, Begowre river!, Lorentz river!). 



23. Dryocalamus Giinther. 



(GiJNTHER, Cat. Col. Snakes p. 121, 1858). 



Head distinct from neck, depressed; eye rather large; pupil 

 vertically elliptic. Maxillary teeth 8—10, short, increasing in 

 size posteriorly; anterior mandibular teeth longer than poste- 

 rior; one or two tooth-like knobs on the basisphenoid. Body 

 a little compressed, slender, covered with smooth scales, with 

 pits, in 13 or 15 rows; ventrals strongly keeled on each side. 

 Tail moderate; subcaudals in two rows. 



Distribution. Malay Peninsula; Sumatra; Natuna Islands; 

 Borneo. 



