250 REPTILES FROM NEW GUINEA, 



and agreeing with Mehely's specimen from the same locality ') 

 in having the greatest diameter of the tympanum as large 

 as the eye-slid; moreover our specimen (a very large one, 

 measuring 200 mm. from the tip of the snout to the vent, 

 and 680 mm. from the vent to the end of the tail) has 

 the strongest spines of the nuchal crest much smaller than 

 the diameter of the tympanum. It is of a light brown 

 colour, the upper part of the nape and a spot on each 

 side of the neck being dark brown , and a somewhat 

 crescent-shaped whitish spot bordering the dark spot from 

 behind and running on the shoulder. 



6. Varanus prasinus Schl. 

 Two specimens. 



7. Varanus indicus Daud. 

 One young specimen. 



8. Tiliqua gig as Schneid. 



Several adult, semi-adult and young specimens. 



9. Lygosoma tigrina , n. sp. (Plate 6 , figs. 1 and la) ^). 

 Body elongate, limbs rather short, the distance between 



the end of the snout and the fore-limb is contained one 

 and three-fifths in the distance between axilla and groin. 

 Snout elongate. Lower eyelid without transparent disk. 

 Nostril pierced in a single nasal. No supranasals. Anterior 

 loreal single , in contact with the nostril , frontonasal , 

 praefrontal , second loreal and first and second upper labial. 

 Rostral forming a short suture with the frontonasal which 

 is broader than long ; praefrontals forming a short median 

 suture. Frontal quadrangular, longer than broad , broader 

 than the supraocular region and as long as the 

 frontoparietals and the interparietal together, in contact 

 with the first supraciliary and the two anterior supraoculars. 

 Four supraoculars followed by a very small fifth one, seven 

 supraciliaries , first largest, in contact with the first supra- 



1) L. V. Méhely, Beitrage zur Herpetology von Neu-Gninea, in Természetrajzi 

 Fiizetek, vol. XVIII, p. 130, 1895. 



2) The demarcation between the scales so clearly visible in onr figure is 

 in reality scarcely visible because of the lustre of the scales. 



Notes from the Leyden IMuseiiin, Vol. XVIII. 



