MATERIALI PER UNA FAUNA DELL'ARCIPELAGO TOSCANO 



IX. 

 ISOLA DEL GIGLIO 



ON THE WALL-LIZARD OF GIGLIO ISLAND 

 By G. A. BOULENGER, F. R. S. 



Dr. Gestro has been so kind as to entrust to me for study a 

 series of lizards collected many years ago by the late Marquis 

 Giacomo Doria on Giglio. It contains examples of three species: 

 Hemidaclylus turcicus, L. , Phyllodactylus europceus, Gene, 

 and Lacerla ma rails, Laur. 



The last species is represented by 85 specimens, on which I 

 wish to offer some remarks, justified by the fact that previous 

 writers on the varieties of Lacerla muralis have confined their 

 attention to the pattern of coloration of the Giglio Lizard without 

 a minute study of its lepidosis. The result of my examination is 

 that it must be referred to the var. tiliguerta, Gmelin. 



The specimens fall into three groups as regards the markings : 



A) Grey, greyish-olive or greenish, with black spots usually 

 forming a reticulation, sometimes cross-bars, or with the spots on the 

 vertebral region confluent into a wavy band, thus answering to the 

 patterns striato-maculata, reticulata, and tigris of Eimer (1881). 

 The young are reticulated, with a more or less distinct tendency 

 for the vertebral spots to run together into a band and for the 

 light ground colour to appear as four longitudinal streaks. The 

 largest male of this category measures 07 millim. from snout to 

 vent, the largest female 63. 



12 males, 15 females, 7 young. 



B) Intermediate between the preceding and the following. 

 The markings are present, and vary to the same extent, but they 



