3. TRACHYSAURUS.—4. TILIQUA, 143 
_ 1. Trachysaurus rugosus. 
Trachydosaurus rugosus, Gray, Cat. p. 102. 
—— asper, Gray, 1. e. p. 103. 
Trachysaurus rugosus, Gray, in King’s Voy. Austral. ii. p. 480; 
Dum. & Bibr. v. p. 754; McCoy, Prodr. Zool. Vict., dec. xi. 
‘pl. 102; Haake, Zool. Anz. 1885, p. 485. 
peronii, Wagl. Icon. Amph. (nec fig.). 
Brachydactylus typicus, Smith, S. Afr. Quart. Journ. ii. 1835, p.144, 
Tishaa’ typicus, Gray, in Grey’s Journ, Austral. ii. p. 423. 
—— asper, A. Dum. Cat. Méth. Rept. p. 179. 
Head large, very distinct from neck ; snout short, obtuse. Head- 
shields convex, more or less rugose. Frontonasal the largest head- 
shield; prefrontals forming a median suture; two or three supra- 
oculars and five to seven supraciliaries ; frontal and interparietal 
varying much in length; ear-opening about as large as the eye- 
opening, without lobules. Dorsal scales very large, rough, strongly 
imbricate, suggestive of the fruit of a pine; ventrals much smaller, 
smooth; 20 to 30 scales round the middle of the body. Limbs 
widely separated when adpressed ; digits very short. Tail about 
as long as the head, stump-like, scaled like the body. Brown 
above, with yellowish spots or irregular cross bands ; lower surfaces 
yellowish, spotted or marbled with brown, or with longitudinal and 
transverse brown streaks. 
4 millim. 
Total length ...... 353 Fore limb........ 56 
Head oes care gen 60 Hind limb ...... 57 
Width of head .... 58 Tall oc sddekeew ss 63 
Body. pgcse visveaingeas 230 
Australia. 
a. Ad., bad state. King George’s Sound. Capt.P.P.King[P.]. (Type. 
b. Hor. Hiowman'e Abrathod Mie Gilbert (ct 1. (Type) 
ce. Ad., stuffed. Dirk Hartog Island. H.M.S. ‘ Herald.’ 
d. Her., stuffed. Shark’s Bay. H.MS. ‘ Herald.’ 
e,f.g,h,%. Ad.  W. Australia. 
& her., stufted. 
k,im. Ad., stuffed. Adelaide. C. D. E. Fortnum, Esq. [P.]. 
(Types of T. asper.) 
n,o. Ad. & her, New South Wales. G. Krefft, etna, 
p. Ad. Gayndah. Museum Godeffroy. 
g. Ad Australia. Lord Derby [P.]. 
r, 8. Ad., stuffed. Australia. — 
t, u. Skeletons. W. Australia. 
4. TILIQUA. 
Tiliqua, Gray, Ann. Phil, (2) x. 1825, p. 201. ; 
Tiliqua, part., Fitzing. N. Class. Rept. p. 23; Gray, Griff. A, K. ix, 
Syn. p. 67, and Ann. N. H. ii. 1838, p. 288, 
Cyclodus, Wagler, Syst. Amph. p. 162; Wiegm. Herp. Mex. p. 11; 
Gray, Cat, Liz. p. 103. 
Cyclodus, part., Dum. § Bibr. v. p. 747, 
