79 



verse bands; tail without spots; upper labials grey with dark 

 sutures. Lower surface light; tail with a series of dark spots 

 in the middle. 



Type-specimen examined in the Leiden Museum. 



Habitat: S. New Guinea (Lorentz river I). 



6. Tropidonotus sarasinorum Boulenger. 



Tropidonottts Sarasinoruvi^ lioulenger, Ann. Nat. Hist. (6) XVII 1896, p. 393; 

 Proc. Zool. Soc. 1897, p. 218. 



Snout prominent, truncate; eye moderate, rostral more broad 

 than deep, not visible from above; internasals as long as the 

 praefrontals; frontal longer than its distance from the tip of 

 the snout, shorter than the parietals; loreal as long as deep; 

 one prae- and three postoculars; temporals 1+2 or 1 + 3; 

 eight upper labials, third to fifth entering the eye; four lower 

 labials in contact with the anterior chin-shields; latter shorter 

 than the posterior. Scales in 15 rows, strongly keeled; ventrals 

 137 — 141 ; anal divided, subcaudals 65 — 75. 



Reddish-brown anteriorly, olive or dark grey behind, with 

 blackish transverse bands; a dark nuchal blotch in connection 

 with a dark streak on each side of the head along the upper 

 border of the labials, which are whitish and speckled with brown. 

 Lower surface yellow, sides reddish, dotted with black; posterior 

 ventrals and subcaudals in the male grey. Length of head and 

 body 380 mm.; tail 150 mm. 



One of the type-specimens examined in the British Museum. 



Habitat: Celebes (Loka on Bonthain Peak 3500 feet!). 



7. Tropidonotus mairi Gray. 



Tropidonotus mairii^ Gray, Grey Trav. Austr. II 1841, p. 442. 



Tropidonotus mairii^ Boulenger, Ann. Mus. Civ. Genova (2) XVIII 1897, p. 703, 



Matrix mairii^ Barbour, Mem. Mus. Comp. Zool. Haiv. Coll. XLIV I9i2,p. 107. 



Eye larger than in Tr. picttiratiis, longer than its distance 

 from the anterior border of the nostril; rostral visible from 

 above; internasals slightly shorter than the praefrontals; frontal 

 longer than its distance from the tip of the snout, shorter 

 than the parietals; two (rarely one) prae- and three (rarely 

 two or four) postoculars; temporals i 1 i or 1+2 (2 + 2); 

 eight (nine) upper labials, fourth and fifth or third to fifth 

 (fourth to sixth) entering the eye; five (four) lower labials in 



