EULAEMUS DARWIN I. 361 



or clouded with greyish lines, spots, or dots. That region, sometimes, 

 is unicolor in the female. 



The specimen figured was sketched and colored from life in May, 

 1839. 



Log. — Caught in the neighborhood of Valparaiso, Chile. 



Plate XXVIII, fig. 9, represents Eulaemus tenuis, size of life. 



Fig. 10, is an upper view of the head ; 



Fig. 11, a profile view ; and, 



Fig. 12, an under view of the same region. 



Fig. 13, the right hand, seen from above ; 



Fig. 14, the same, seen from beneath. 



Fig. 15, exhibits a group of dorsal scales ; 



Fig. 16, a group of abdominal scales. 



Figs. 10-16, are somewhat magnified. 



2. Eulaemus darwini, Grd. 



(Plate XVII, figs. 8-14.) 



Spec. Char. — Cephalic plates minutely granular. Supralabials nearly 

 equal to the labials. Temporal scales subcarinated. Auricular 

 aperture subtubercular. Three series of infralabials. Six or seven 

 pairs of mental shields. Dorsal and lateral scales subequal, all 

 keeled ; abdominal scales rather larger, subrhomboid, subacumi- 

 nated, emarginated on the sides of the belly. Posterior aspect of 

 thighs granular, with a patch of scales near the tail. Tail moderate, 

 subcorneal, and pointed. Grreyish-brown, with two light longitudi- 

 nal streaks on each side, and four series of quadrangular black spots, 



' posteriorly margined with white ; beneath yellowish-white ; throat 



' black in the male. 



Syn. — Froctotretus darwinii, Bell, Zool. Voy. Beagle, V. 1843, 14. PL vii, figs. 

 1-2. 



Liolaemus darwinii, Gray, Catal. Lizz. Brit. Mus. 1845, 215. 



Eulaemus darvnni, Grd. in Proc. Acad. Nat. Sci. Philad. November, 1857, 198. 



Observ. — Had we had for our sole guidance the figures given in the 

 Zoology of the Beagle, we would have hesitated identifying this species. 



91 



