TIARIS. 151 



reaches to the loin, if laid backwards ; the hind leg, if laid forwards, nearly to the end of 

 the snout. The fourth hind toe is one-fourth longer than the third. 



The ground-colour of the upper parts is brownish ; uniform in the females, variegated with 

 darker in the males Some of the large scales of the back appear to have been iridescent 

 during life. The lower parts are uniform dull yellowish. 



This species attains to a length of nearly 7 inches, the tail measuring 4|. It inhabits 

 the Sikkim parts of the Himalayas, and has been obtained at an altitude of 9200 feet. 



TIARIS. 



Tiaris, {Bum. ^ Bib)-.) Gray, Lizards, p. 239. 



Tympanum naked. Back and sides covered with small imbricate scales 

 with scattered larger ones ; no spine behind the superciliary margin. Dorsal 

 crest present, formed by non-united spines ; gular sac present, at least in the 

 males. A fold before the shoulder. Femoral pores none. 



Species from New Guinea and from the Philippine Islands have been refeiTed to this 

 genus. Mr. Blyth considers a lizard from the Andaman Islands also as belonging to it. 



Tiara subcristata (Blyth, Journ. As. Soc. Beng. xxix. p. 109). — A low nuchal crest, and merely a shght 

 serrated ridge along the back ; gular pouch in the males only, covered with small smooth scales of equal 

 size ; ventral scales keeled ; those of the upper parts minute, arranged in irregular transverse series, their 

 keels presenting a tuberculated appearance except towards the ridge of the back : a row of about ten large 

 tubercles on each side, commencing from the occiput. Colours various, the young being much speckled 

 and reticulated with greyish black ; the full-grown mostly plain, with dark bands on the tail more or less 

 distinct. Length 12 inches, of which the tail is 8^ inches. Common at Port Blair. 



