4 EINAR LÖNNBERG AND L. G. ANDERSSON, DR. E. MJÖBERGS EXPEDITIONS TO AUSTRALIA. 7. REPTII ES. 
Amphibolurus muricatus WHITE. A specimen from Atherton probably belongs 
to this species, but in consequence of its youth we do not dare to state this with 
full certainty. 
Physignatus nigricollis n. sp. Body compressed; tail long, round, not crested, 
strongly tapering, nearly 2'/2» times as long as head and body. Head rather short 
and deep; the length of the abruptly sloping snout not quite twice the diameter 
of the orbit, about equal to the distance between the orbit and the posterior border 
of the tympanum. Nostril nearer the orbit than the tip of snout. Tympanum 
large, somewhat smaller than the orbit, but equal to the ocular slit. Cheeks without 
erect spines. Upper head-scales keeled, large, especially on the snout and between 
the orbits (but not minute on the back of the head). Gular scales imbricate, large, 
equal, strongly keeled, especially towards the fold mucronate; narrower and more 
elongate on the sides of the jaw. Dorsal scales imbricate, keeled, mucronate; the 
vertebral row forming a short and low nuchal serrated ridge. The second row from 
the vertebral one somewhat enlarged and strongly keeled; the sixth row from the ver- 
tebral is still more strongly keeled and forms a distinct ridge which is the more conspi- 
cuous as it appears to be more light-coloured than the surrounding parts. The 
latter extends to the base of the tail. Ventral scales strongly keeled, larger than 
those of the sides; the latter smaller and less strongly keeled than those of the 
above mentioned five rows of enlarged dorsal scales, but about equal to the dorsal 
scales of the intermediate rows. On the posterior parts of the sides the scales are 
directed somewhat downwards. The total number of scales round the middle of the 
body is about 66—68. Limbs long; the adpressed hind limb reaches to the middle 
of the eye. Three (-- four) preanal pores. (Femoral pores not developed in the 
type specimen.) Scales of the tail large, strongly keeled, subequal but a little smaller 
above than below, regularly arranged in longitudinal rows. Colour in spirit olive 
grey above with two rows of undefined brown spots on the back between the whitish 
lines mentioned above. Tail more light-coloured than the body with numerous 
obsolete brownish rings. Head irregularly blotched with blackish, lips not white. 
A large blackish blotch on the sides of the neck in front of the shoulder. Lower 
side whitish, throat mottled with dark. Total length 241 mm.; length of tail 170 
mm.; fore limb 31 mm.; hind limb 55 mm. 
One specimen from Cooktown, N. Queensland. 
Tropidophorus queenslandig DE Vis. — One specimen from Atherton, N. 
Queensland, Jan. 1913, agrees with the description of the type except in the fol- 
lowing points. The scales on the temples and on the throat of the present specimen 
appear to be less strongly keeled than in the type specimen. The number of rows 
of scales around the body is in the former 36—38. These discrepancies may, how- 
ever, only be individual. DE Vis states in the description »two large preanals>. 
The present specimen has two large median and two small lateral preanals. DE VIS 
speaks about »an azygous postmental»; we suppose that he possibly by this means 
