244 Lacertidx. 



Zool. Soc. xvii, 1905, p. 409, pi. xxix, figs. 5, 6, and xx, 1913, p. 157, 

 pi. xviii, fig. 7, and Ann. Mus. Geneva (3), vi, 1915, p, 379. 



Lacerta serpa, part., Camerano, Mon. Saur. Ital. p. 56, pl.»i, fig. 1 

 (1885) ; Schreib. Herp. Eur., ed. 2, p. 444 (1912). 



Lacerta muralis neapolitana, part., Bedriaga, Abh. Senck. G-es. xiv, 

 1886, p. 220. 



Lacerta muralis neapolitana, var. viridiocellata, part., Bedriaga, t.c. 

 p. 240. 



Lacerta muralis, var. tiliguerta, part., Bouleng. Cat. Liz. iii, p. 30 

 (1887). 



Lacerta muralis, var. eettii, L. Milll. Zool. Anz. 1905, p. 502. 



Lacerta muralis, var. serpa, part., Bouleng. Tr. Zool. Soc. xvii, 1905, 

 p. 394, pi. xxvii, fig. 6. 



Head 1^ to If times as long as broad, usually rather strongly 

 depressed, the occiput quite flat or even slightly concave, sometimes 

 however not difEering from that of an average L. m. var. alhiventris, 

 its depth equal to the distance between the centre of the eye and the 

 tympanum, its length 3^ to 4 times in length to vent in males, 4 to- 

 4| times in females. Pileus 2 to 2y times as long as broad. Neck as 

 broad or a little narrower than the head. Body moderately depressed. 

 Hind limb reaching between the collar and the ear in males, the axil, 

 the shoulder, or the collar in females ; foot 1^ to 1^ times the length 

 of the head. Tail If to 2^ times the length of head and body. 



Eostral shield never entering the nostril, and usually separated from 

 the frontonasal by the nasals* ; postnasal singlet; frontal as long as 

 its distance from the end of the snout or a little shorter ; series of 

 granules between the supraoculars and the superciliaries usually incom- 

 plete, the first superciliary being in contact with the second supra- 

 ocular ; 6 to 8 superciliaries, the suture between the first and second 

 usually oblique ; parietals \\ to If times as long as broad ; occipital 

 as long as or shorter, and usually not broader, than the interparietal ; 

 usually four upper labials anterior to the subocular,J which is much 

 shorter beneath than above ; first upper temporal more often than not 

 in contact with the fourth supraocular § ; temporal scales granular,, 



* In 2 specimens from Sardinia, the rostral forms a sutm-e with the fronto- 

 nasal. 



t 2 superposed postnasals in 5 cases out of 170 from Giglio. 



J 5 in a male from Monte Cuccio, Sicily, and on one side in one from Gram- 

 michele, in 12 cases out of 170 from Giglio, in 2 cases out of 20 from Sardinia 

 3 in 2 cases from Giglio. 



§ In 60 per cent, of the specimens examined. 



