Mr. Gray on the Slender-tongued Saurians. 279 



Fam. 2. Lacertinid^e. 



Head shielded ; superorbital plate rigid ; throat scaly ; tongue 

 exsertile, tip longly forked. 



A. Collar distinct ; dorsal scales somewhat granular ; nostrils erect, 

 lateral, subapical ; ventral shields broad, smooth ; toes simple. 



Zootoca, Wagler. Lacerta, Linn. Nostrils, in the suture of two 

 scales, placed on the sides of the nose ; abdominal shields square. 

 * Dorsal scales rather long, 6-sided. 



Zootoca muralis. Lacerta vivipara, Jacq. L. crocea, Wolf. Sturm's 

 Fauna, t. 4. L. pyrrogaster, Merrem. L. agilis, Pennant. Male in 

 summer. Lac. cedura, Sheppard. 



Var. Lacerta nigra, Wolf. Black, nearly uniform. 



Inhab. England, Germany. Var. Ireland. 



See also Lacerta Saxicola, Eversman, Mem. Mosk. iii. t. 30. f. 1. 

 ** Dorsal scales small, broad, 6-sided. 



Zootoca quadrilineata, Gray. Collar continuous, even; ventral 

 shields 6-rowed, middle row rather the narrowest, green, with irre- 

 gular, unequal black spots. 



Inhab. Sardinia. 



Lacerta, Linn. Bonap. Lacerta and Podarcis, Wagler. Nostril 

 erect, in the suture of three scales, placed on the side of the muzzle; 

 abdominal shields square, two central series narrower, with oblique 

 sides. 



a. Dorsal scales ovate, short, thick, smooth, convex. 

 * Abdominal plates 8 or 10-rowed (Lacerta). 



Lacerta ocellata, Daud. Edw. t. 202. Pet. Gaz. t. 92. f. 1. Po- 

 darcis ocellata, Wagler. Jun. Lacerta Lepida, Daud. iii. t. 37. f. 1. 



Inhab. South of Europe. 



Lacerta Senegalensis. Very like the former, but twice as large. 



Inhab. Senegal. 



** Abdominal plates 6-rowed. 



Lacerta lavis, Gray. Greenish-grey, beneath greenish-white; dor- 

 sal scales roundish, 6-sided, convex ; prseanal plates with an arched 

 series of 6 rather large shields in front. 



Inhab. . 



b. Dorsal scales elongate, keeled; throat scales large, broad. Podarcis. 

 Lacerta viridis, Linn., Daud. iii. t. 34. Podarcis viridis, Wagler. 

 Lacerta varius, Edw. 



Var. 1. Lac. bilineata, Daud. 

 Var. 2. Lacerta fusca, Daud. 

 Inhab. Europe. 



