TJie Lizards indigenous to Victoria. 61 



Habits. — Found in rocky places. 



Distribution. — Victoria : Melbourne, Sunbury, Brighton, 

 Castlemaine, Beechworth, Mt. Stanley. 



Range outside Victoria. — West Australia, Sydney, Queensland. 



Trachysaurus, Gray. 



Palatine bones in contact on the middle line of the palate. 

 Pterygoids toothless. Lateral teeth with subconical crowns. 

 Eyelids well developed, scaly. Tympanum distinct, deeply sunk. 

 Nostril pierced in a single nasal, with a curved groove behind ; 

 no supi'anasals ; a complete series of shields between the orbit 

 and the upper labials ; prsefrontals well developed ; fronto- 

 parietals and interparietal distinct, the latter shield in contact 

 with an azygos occipital. Dorsal scales rhomboidal, rugose. 

 Limbs short, pentadactyle ; digits cylindrical ; subdigital lamellae 

 mostly divided. Tail short, stump-like. 



This genus, which is represented by only one species, extends 

 over the whole of Australia to which it is confined. 



Trachysaurus rugosus, Gray. 



Trachydosaurus rugosus, Gray, Cat., p. 102. 



asper, Gray, I.e., p. 103. 



Trachysaurus rugosus, Gray, in King's Voy. Austral., ii., p. 430, 

 Dum. and Bibr., v., p. 754 ; McCoy, Prodr. Zool. Vict., dec. xi., 

 pi. 102 ; Haake, Zool. Anz., 1885, p. 435. 



peronii, Wagl., Icon. Amph. (nee fig.) 



Brachydactylus typicus. Smith, S. Afr. Quart. Journ., ii., 1835, 

 p. 144, pl.- 



Trachysaurus typicus. Gray, in Grey's Journ. Austral., ii., [». 423. 



asper, A. Dum., Cat. Meth. Kept., p. 179. 



DescriptioJi. — " Head large, very distinct from neck ; snout 

 short, obtuse. Head-shields convex, more or less rugose. F..>nto- 

 hasal the largest head-shield ; praefrontals forming a median 

 suture; two or three supraoculars and five to seven supraciliaries ; 

 frontal and interparietal \arying much in length ; ear-opening 

 about as large as the eye-opening, without lobules. Dorsal scales 

 very large, I'ough, strongly imbricate, suggestive of the fruit of a 

 pine ; ventrals much smaller, smooth ; twenty to thirty scales 



