Lacerta. 167 



straight or oblique, the upper more or less strongly keeled, rarely nearly 

 smooth,* the lower smooth or feebly keeled ; the whorls alternately 

 longer and shorter, the feature more distinct in some specimens than in 

 others ; 25 to 32, exceptionally 20 or 40,t in the fourth or fifth whorl 

 behind the postanal granules ; apical sensory pits often more or less 

 distinct. 



Upper surface varying from grey to brown, sometimes with a tinge of 

 greenish. Two light, whitish, yellow, or greenish streaks or series 

 of spots on each side, the upper from the outer edge of the 

 parietal to the upj)er surface of the base of the tail, the lower 

 from the upper lip, through the middle or the lower part of the 

 tympanum, to the base of the thigh, reappearing on the tail ; between 

 these two streaks, which may be edged with black, a dark brown 

 band, often spotted with whitish, yellow, bluish, or greenish, among 

 which but rarely a larger ocellar spot, sometimes with green or blue 

 centre^ above the shoulder ; frequently a dark brown or black 

 verteliral stripe or series of spots§ ; the back often speckled, spotted, 

 or marbled with dark brown or black, the markings sometimes wavy 

 transverse bands on the posterior pai-t of the body. Some specimens, 

 especially males, entirely marbled or reticulate with black, without or 

 with mere traces of the light lateral streaks. The markings sometimes 

 reddish brown or even brick-red. Upper surface of head uniform or 

 speckled, spotted, or marbled with brown or black. Limbs usually 

 with white, ])lack-edged spots. Black and white spots on the side of 

 the tail, usually forming regular bars, which may be connected above 

 by V-shaped dark markings ; in some specimens the dark lateral band 

 is continued on the tail, and it usually reappears on the regenerated 

 part. 



Lower parts white, pink, yellow, orange or brick-red, the orange or 

 red more frequent in males than in females, || immaculate or with black 



* Female from St. Lunaire ; very feebly keeled in a male from Salonica. 



t 20 in a female from Voslau, 40 in a male from Bassovica 



J As in a large female, with strongly depressed head, from Bagneres de 

 Bigorre, figured in Tr. Z. S. xvii, pi. xxv, fig. 7. Also in specimens from Paris, 

 the Pyrenees, the Alps near Randa, and Piedmont. 



j A female from Voslan is remarkable in having a paired series of dark spots 

 along the spine, as in the Spanish and Caucasian varieties. 



II The colour of tlie lower jjarts is of no importance for the definition of 

 varieties, as I have seen specimens from the same locality with the belly white, 

 pink, or red, and it is not always a guide for the distinction of the sexes, as the 

 so-called var. ruhriventris may be found in both sexes (Bedriaga, Bull. Soc. 

 Zool. France, 1879, p. 215). Kammerer is mistaken when he says of the female 

 (Arch. Entwickm. xxix, 1910, p. 459), " Ventralseite des normalen i. muralis 

 niemals rot." 



