140 ME. G. A. BOULENGER ON THE 



records them under the name of var. lilfordi. I have not seen these specimens, but 

 I have no doubt that if they were examined as to their scaling they would be found to 

 agree entirely with the typical form, which grows to a large size on the Glenan Isles, 

 whilst the true var. lilfordi, from the Balearic Islands, can be recognised at once by its 

 much smaller scales. I have exhibited before one of the meetings of this Society * 

 a totally black individual of the typical form from near Florence, apparently similar to 

 others from Bordeaux and the Italian Lakes district, reported upon by Lataste f and 

 by Kammerer %, thus showing that these black so-called varieties are not, as generally 

 believed, only produced by isolation on small rocks. 



Basing likewise his identification on colour and markings, M. M. Mourgue § has 

 recorded the vars, nigriventris Bp., and latastii Bedr., from the Riou Isle, off Marseilles. 

 But the specimens he has been so kind as to send me, proved, as I expected, to belong 

 to the typical form. I append particulars of these two specimens : — 



Now, the var. nigriventris, from Rome (see Tr, 1905, p. 384), has 55 to 71 scales 

 across the body, and 27 to 31 lamellar scales under the fourth toe, and the var. latastii 

 (var. serpa, from Ponza, p. 397), 66 to 71 of the former, and 30 to 33 of the latter. 



I have before me a large male specimen from St. Liinaire, near St. Malo (PI. XVI. 

 fig. 1), which still more resembles in its coloration the var. nigriventris of Italy. Its 

 upper parts are black, with numerous round lemon-yellow spots, and the pinkish-white 

 belly is spotted with black. It is further remarkable in having the anterior nasal in 

 contact with the anterior loreal, above the posterior nasal. Along with its particulars 

 I give those of a female specimen from the same locality, which has a large transverse 

 shield in front of the anal, and a round black spot on almost every ventral shield 



(PI. XVI. fig. 2). 



1. 2. 3. 4. 5. 6. 7. 



St. Luiiaire S 72 60 27 10 27 22-23 23 



<f 67 53 30 9 24 21-22 23 



Here, again, the low number of subdigital lamellae (23) shows that this lizard cannot 

 be referred to the var. nigriventris, however much it may resemble it in coloration and 

 in size. The latter agrees exactly with that of the Glenan Isles specimens [l. c. p. 357), 

 which were hitherto regarded as among the largest of the typical form. As size is 



* P. Z. S. 1905, ii. p. 324. 



t Herp. Gironde, p. 76, 1876. 



+ Zentralbl. f. Physiol, xx. 1906, p. 261. 



§ Feuille des Jeunea Naturalistes, xxxix. 1909, p. 250 ; and xl. 1910, p. 87, figs. 



