194 SAURIA. 



Psammodromus cinereus. 



Psamniodromus cinereus, Buon. Faun. Ital. (figured). 

 Lacerta cinerea, Schinz, Europ. Faun. vol. ii. p. 28. 



Description. — This is distinguished from the last, by Prince 

 Buonaparte, by the head being smaller, the feet and tail 

 shorter, the scales of the temples larger and more un- 

 equal, the parietal plates smaller, and the gular fiuTow 

 deeper and uninterrupted, covered with scales somewhat 

 larger than the rest, so as almost to give an appearance of 

 a collar ; the fore-feet also hardly reach beyond the eyes ; 

 the femoral pores are scarcely visible. 



The colour, instead of being varied, as in the P. Ed- 

 rvardsianus, is of a uniform ashy hue. Its habits and 

 proportions are the same as in the allied species, and they 

 are found together on both sides of the Yar, on the frontier 

 of France and Piedmont, and near Marseilles. 



Not mentioned in the < Erpetologie Generale.' 



Genus ACANTHODACTYLUS. 



No teeth on the palate ; a single naso-rostral plate, be- 

 tween which and the first labial, and naso-frenal plates, 

 the nostrils are situated. Beneath the neck is a collar of 

 scales larger than the rest ; there is no occipital plate ; the 

 temples are clothed mth small equal scales ; the ventral 

 plates are smooth, quadi'ilateral, arranged in rows, some- 

 times rectilinear, often oblique, smaller, and more nume- 

 rous than in the genus Lacerta ; pores along the thighs ; 

 feet with five toes slightly compressed, keeled beneath, and 

 toothed on the side ; tongue and teeth as in Psammo- 

 dromus. 



