42 REPTILES. 



thin, rhomboidal, keeled, imbricate ; palate toothed ; ear slightly 

 toothed in front; ventral shields lozenge-shaped, in 14 series; pre- 

 anal scales small, numerous, subequal. 



a. In spirits. S. Africa. Presented by the Earl of Derby. 

 h. In spirits. S. Africa. Presented by Dr. A. Smith. 



The Waved Eremias. Eremias undata, Diim. et Bib. E. G. 

 V. 316. Smith, III. Z. S. Afr. t. Lacerta undata, A. Smith, 



Mag. N. H. ii. 93. 



Lower eyelid with 2 central transparent plates; ears with a few 

 prominent granules in front ; subocular plate between the fifth 

 and sixth labial shields; scales of the back sub rhomboidal, smooth, 

 not imbricate; ventral shields in 13 series, subrhomboidal, the cen- 

 tral series narrower on each side behind; preanal scales subequal, 

 moderate-sized. 



a. In spirits. Back dark blackish, 2 pale streaks on each side. S. 

 Africa. Presented by the Earl of Derby. 



The Beautiful Eremias. Eremias pulchella. 



Reddish olive, black varied, with 2 rows of black rings on ^ach 

 side; lower eyelid with 2 transparent plates, forming an oblong, 

 transverse spot; collar of 11 or 13 scales; scales of the back 

 small, granular, rhombic, thick, convex, obscurely keeled, of the 

 hinder part of the back rather larger and not imbricate ; edge of 

 the ear slightly toothed ; ventral shields rather rhombic, in 14 se- 

 ries ; preanal scales 5 or 6, moderate, surrounded by smaller ones. 



a. In spirits. S. Africa. Presented by the Earl of Derby. 

 h. Half-grown. In spirits. Presented by the Saffron Walden N. 

 Hist. Society. 



tttt ? 



Aspidorhinus gracilis, Eichw. Fauna Casp. Cans. 74, t. 11,/. 

 4 — 6. Lacerta g. Eichw. J. S. iii. L. vittata, Eversm. not Gmel. 



Scales of the temple very small, with 1 superior and 2 inferior 

 larger plates, of the back very minute, granular; "preanal shield 

 variable, single, large, or numerous and small ; " black, with nar- 

 row white streaks ; hind legs white-spotted, beneath white. 



Inhab. Shore of the Caspian Sea. 



13. Mesalina, Grai/. Scrapteira, part. Gray. 

 Eremias, Sect. Dum. et Bib. 



Head rather depressed. Nostrils on the ridge between 3 swol- 

 len scales, the lower and anterior moderate, hinder ujiper small, 

 triangular. Eyelids distinct. Collar indistinct, subangular, at- 

 tached in the middle, free on the sides. Throat without any fold 

 under the ears. Ventral shields smooth, central, contracted be- 

 hind. Scales of the back rhombic or circular, not imbricate. 

 Toes 5-5, rather compressed, keeled beneath, not toothed on the 



