YAEIETIES OP THE WALL-LIZAED. 183 



Collar not serrated, Avith 9 to 11 plates, which niay be very small ; gular fold very 

 distinct ; 28 to 35 scales and granules between the symphysis of the chin-shields 

 and the median collar-plates. 



Dorsal scales small, granular, round or oval, smooth, rarely faintly keeled, equal in 

 size, 54 to 63 across the middle of the body ; 3 and 4 series corresponding to one 

 ventral plate, 38 to 56 to the length of the head. 



Ventral plates in 6 longitudinal and 26 to 34 transverse series. Prseanal plate 

 moderate, with one or two semicircles of small plates. 



Scales on upper surface of tibia feebly keeled, considerably smaller than dorsals. 

 18 to 26 femoral pores on each side (usually 21-24). 26 to 33 lamellar scales under 

 the fourth toe. 



Upper caudal scales truncate and very obtusely, very feebly, diagonally keeled ; 

 28 to 38 scales in the fourth whorl behind the postanal granules. 



Specimens identical in form and scaling differ very considerably in the coloration. 



The form which has been referred to L. muralis fusca * is brown or grey above, 

 with small black spots, which may form two or three longitudinal series on the back 

 and reticulations on the side, the back being separated from the side by a streak of 

 the light ground colour ; some specimens with very small dark dots, or nearly uniform ; 

 no very distinct markings on the tail ; lower parts whitish, unspotted. The largest 

 specimen measures 67 mm. from snout to vent. 



In the var. milensis Bedriaga f the upper parts are pale brown, the sides yellow or 

 greenish yellow, with black marblings often forming cross-bars ; blue ocelli above the 

 shoulder. Belly bluish, with or without large black spots ; throat often black with 

 round light spots (PI. XXI. fig. 3). Werner's var. nigrogularis, also from Milos, 

 differs in having a black vertebral stripe or series of spots. From snout to vent 

 67 mm. 



Bright green specimens (PL XXI. figs. 1 & 2), with the markings as in the 

 specimens described first, and with or without a black vertebral stripe, have been 

 referred by Bedriaga to L. muralis neapolitana \. Belly white or orange. 



The largest specimen measures 71 mm. from snout to vent. 



Bedriaga observes that specimens from Tenos, Syra, and Phanar are green on the 

 anterior part of the back, or only on the neck, and grey-brown or greyish green on the 

 rest of the back. In all these colour-variations, large blue or blue-green spots are 

 present on the outer row of ventrals. 



* Also var. naxensis Werner. The specimens before me are from Petali (Bedriaga), Tenos (Bedriaga), 

 and Naxos (Werner). These specimens often bear a strong superficial resemblance to lizards of the 

 var. quadrilineata from Corsica. 



t Tj'pe specimens of vars. milensis and nigrogularis from Milos and Erimomilo are preserved in the British 

 Museum. 



X Specimens from Syra, Mj-konos, and Santorini have been received from Herr L. Miiller. 



VOL. XX.. — P^iKT III. Ko. 7. — February, 1913. 2 c 



