340 SAURIA. 



LioDEiRA CHiLENSis (Dum. & Bibr.), Grd. ; 



Spec. Char. — Head rather short ; snout obtuse and rounded. Supra- 

 labial plates very narrow and elongated. Two series of infralabials. 

 Three pairs of mental shields. Temporal scales moderate, equal, 

 keeled. Scales on the sides of the neck thin and rhomboid ; lateral 

 and abdominal scales smaller than the dorsal ones, and posteriorly 

 entire ; on the flanks keeled and acuminated ; on the belly smooth. 

 Posterior aspect of thighs uniformly and minutely scaly or sub- 

 granular. Color of a uniform bronze hue, or transversely undulated 

 with brown, or variegated with yellow ; else, fawn-yellow, with two 



. longitudinal brownish bands : a similar streak over the temples, and 

 a forked one upon the nape. 



SYjff.— Cahtes chilensis, Less. Voy. Coq. Zool. II, i, 1830, 86. PL i, fig. 2. 



Tropidurus chilensis, WiEGM. in Nov. Act. nat. cur. XVII, i, 1835, 233 & 268. 



Tropidurus oUvaceus, WiEGM. in Nov. Act. nat. cur. XVII, I, 1835, 268. 



Pi'octotretus chilensis, DuM. & Bibr. Erpet. g^n. IV, 1837, 269.— Bell, Zool. Voy. 

 Beagle, V, 1843, 2. PI. i, fig. 1.— Guich. in Gay, Hist, de Chile, Zool. II, 1848, 

 24. Pi. II, fig. 1.— Dum. Voy. Venus, Zool. 1855, 288. PI. i, figs. 1 & 2. 



Liolaemus chilensis, FiTZ. Syst. Eept. I, 1843, 75. 



Leiodera chilensis, Gray, Catal. Lizz. Brit. Mus. 1845, 210. 



Liolaemus oUvaceus (WiEGM.), TscH. Faun. Peruan. Herp. 1845, 33. 



Observ. — This species, though common in Chile, was not brought 

 home by the Expedition. It has been admirably well figured in the 

 French Voyages quoted in the synonymy, especially in the '' Voyage 

 de la Venus." 



Subgenus PTYCHODEIRA (Dtjm. & Bibr.), Fitz. 



Gen. Char. — Head subovate, anteriorly narrow. Cephalic plates 

 moderate, not carinated ; one series of supralabials. Nostrils late- 

 ral. Temporal scales imbricated and carinated. Auricular aper- 

 ture simple, subgranular, or denticulated. Sides of neck longitu- 

 dinally folded, covered with small, sublanceolated, carinated, and 

 imbricated scales ; no vertico-oblique scapular fold. Scales sub- 



