Lacerta. 129 



6 times in females ; snout obtuse, as long as the distance between the 

 eye and the tympanum ; cheeks not swollen. Pileus If to If times 

 as long as broad. Neck at least as broad as the head, often con- 

 siderably broader. Limbs short ; the hind limb reaches the wrist or 

 the elbow of the adpressed fore limb in males, the tips of the fingers or 

 the wrist, or even not quite so far, in females. Foot 1 to 1^ times 

 length of head. Digits scarcely compressed. Tail cylindrical, often of 

 about the same thickness through its anterior half,* but sometimes 

 gradually tapering from the base and shaped exactly as in L. agilis or 

 L. viridis ; its length li to 1-| times head and body in females, 1^ to 

 2 times in males ; not or but scarcely longer than head and body in 

 the very young. 



Nostril pierced between 2 or 3 shields. Eostral not touching the 

 nostril, sometimes produced at an acute angle between the nasals, the 

 suture between which is short or very shortf ; frontonasal broader 

 than long, usually as broad as the internarial space, sometimes a little 

 narrower, sometimes a little broader, J in contact with the anterior 

 loreal or the single loreal, sometimes with both the loreals or with 

 both the postnasal and the anterior loreal ; suture between the 

 prefrontals often very short§ ; frontal as long as its distance from 

 the rostral or the end of the snout, or slightly longer, 1|- to 2 times 

 as long as broad, usually hexagonal, as broad in front as behind, very 

 rarely a little narrower behind, usually broader than the supraoculars 

 in the adult; parietals not or but little longer than broad, || in contact 



* As occasionally happens in L. muralis. 



t Kostral exceptionally in contact with frontonasal — males from Bourne- 

 mouth, Brussels, Aube, Bordeaux, females from Lhanbryde, Mont Dore, and 

 St. Peter, Carniola. 



J Exceptionally in contact witli frontal — males from Brussels, Padun, 

 Kirghiz Steppes, and SachaUen, females from Norway, TJralsk, and Sachalien, 

 young from Schneeberg and Dambovita. Barbier (I.e.) has also come across 

 such specimens in Normandy. 



§ An azygos prefrontal in males from Bozau and Solowitski Id., in females 

 from La Bourboule and Sachalien, and in a young from Boussers ; a pair of 

 small shields side by side between the larger prefrontals in a, male from 

 Nikolavsk. 



II Bedriaga has drawn attention to a specimen from SachaUen in which each 

 parietal is divided into two. A more or less complete transverse cleft on the 

 parietals, proceeding from the occipital, such as occurs in L. muralis from 

 Lower Austria, is frequent, and this anomaly may be transmitted to the off- 

 spring, as shown by a female from Ostend with her four young born in captivity. 

 Bedriaga also mentioned that the same specimen from Sachalien has each fronto- 

 parietal divided into two, and a female from the same island, received from 

 Prof. Hatta, shows the same anomaly. I find a partial division of the fronto- 

 parietals in a male from Nikolavsk, Amoor. 



9 



