412 



S A U R I A. 



Agama gutiurosa, MERR. Tent. Syst. Amph. 1820, 51. 



Agama moluccana, LESS. Voy. Coq. Zool. II, I, 1830, 34. PI. i, fig. 1. SCHINZ, 

 Naturg. und Abbild. Kept. 1833, 90. Tab. xxx. 



Agama vultuosa, GRAY, in Hardw. Icon. Ined. Tab. LXXX, 81-83. 



Calotes gutturosa, GUER. Iconogr. Regn. Anim. 1833. Tab. vii, fig. 3. 



Calotes cristatellus, SCHINZ, Naturg. und Abbild. Kept. 1833, 86. Tab. xxvr, 



fig. 1. 



Calotes gutturosus, WIEGM. Herp. Mexic. I, 1834, 14. 



Bronchocela cristatdla, KAUP, in Oken, Isis, XX, 1827, 619. BUM. & BIBR. Erpe"t. 

 gen. IV, 1837, 395. GRAY, Catal. Liz. Brit. Mus. 1845, 241. 



Blue Calotes, GRAY, Synops. Kept, in Griff. Anim. Kingd. IX, 1831, 55. 



DESCR. The body is compressed, sloping towards the abdomen 

 from the middle line of the back, which is thus rendered more conspi- 

 cuous than if the same region were rounded. The tail is very long 

 and slender, more than three times the length of the body and head 

 combined, subtriangular upon its base, conical upon the second third 

 of its length, and quadrangular, very much diminished, upon the last 

 third. 



The head is subpyramidal, its upper surface being slightly depressed 

 upon the fronto-nasal region, whilst the interocular region appears 

 grooved, from the fact that the ocular region is raised and convex. 

 The cephalic plates are very small, polygonal, nearly equal, keeled. 

 The nostrils perforate one, rather conspicuous plate, situated upon the 

 side of the snout, immediately beneath the canthus rostralis, which 

 is continued over the orbit as the supraorbital ridge (supraciliary of 

 some writers), behind which, and just over the temporal region, may 

 be seen two or three small, subconical, expanded, and raised scales, 

 forming the immediate continuation of the said ridge. The auricular 

 aperture is quite large, surrounded by small plates or scales, and 

 exhibiting its tympanum near the surface. The scales under the 

 head are well developed, keeled, anteriorly lanceolated, posteriorly 

 sublozenge-shaped ; a longitudinal fold of the skin being observed from 

 the hyoid apparatus to the chest. A horizontal and much wider 

 fold may be seen extending from the posterior extremity of the lower 

 maxillary to the shoulder, over the insertion of the fore limbs. The 

 scales over the region of the neck are smaller than under the head and 

 throat, though a good deal larger than those of the back ; they are 

 conspicuously carinated, and more or less subpyramidal or lanceolated 

 in their outline. The dorsal crest is tolerably elevated just over the 

 nape, where it is composed of erect, slender, lanceolated plates : as it 



