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!). 



6. Tropidonotus sarasinorum Boulenger. 



Tropidonotus Sarasinorum, Boulenger, 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. Geneva (2) XVIII 1897, p. 703. 



Natrix mairii, Barbour, Mem. Mus. Comp. Zool. Harv. Coll. XLIV 1912, p. 107. 



Eye larger than in Tr. picturatus, 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 + 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 



