276 



Left side of pelvis of Iguanoid Lacertilian. — II, ilium ; Is, ischium ; P, pubis ; 

 A, acetabulum ; pra, psa, pre- and postacetabular processes ; p, symphysis 

 pubis ; pf, ischio-pubic notch. (From the ' Quart. Journ. Greol. Soc.') 



there is a sternum, clavicle, interclaviele, and sacrum ; and the 

 pelvis (fig. 60) is well developed. The limbs are adapted for walk- 

 ing, with clawed terminal phalangeals, and a foramen to the 

 humerus. Dermal scutes may be present. 



Equivalent to the Lacertilia Yera of Boulenger l ; the Ehiptoglossa 

 being reckoned as a group of equal rank. Pig. 52 shows the lateral 

 aspect of the Lacertilian pectoral girdle, exclusive of the clavicle 

 and interclaviele. 



Family AGAMIM]. 



Temporal arcade and postorbital bar complete; supratemporal 

 fossa not roofed over by bone; premaxillas separate. Dentition 

 acrodont. Vertebrae without zygosphenes. 



Genus CHLAMYDOSAURUS, Gray 2 . 

 The tympanum distinct. 



CfylamgttogauruS fcmgf, Gray 8 . 



The only species. 

 Hob. Australia. 



E. 495. Portions of a skull, provisionally referred to this species; 

 from the Pleistocene of Gowrie, Queensland. This spe- 

 cimen has been named 0. bennetti by Owen in MS., but it 

 docs not appear to show any characters by which it can 

 be distinguished from the living form. 



Presented by Dr. George Bennett. 



1 Catalogue of Lizards (1885-87). 



2 In King's ' Voyage to Australia,' vol. ii. p. 424 (1826). 3 Op. cit. p. 425. 



