356 ME. G. A. BOULENGER ON THE VARIETIES OP 



or reticulate with black, without or with mere traces of the light lateral streaks 

 (Plate XXIV. fio-. 1). Upper surface of head usually more or less dotted or spotted 

 with black. Sometimes a well-defined black ocellus, with white or green centre, above 

 the shoulder or axil 1 . 



Black and white spots on the sides of the tail, usually forming regular bars. 

 Lower parts white or yellow in females, white, pink, yellow, orange, or brick-red 

 in males ; blue spots on the outer row of ventral plates, especially in males ; belly 

 usually immaculate, or with scattered black dots in females, more or less spotted with 

 black in males. In some specimens from Dinant, in Belgium (Plate XXIV. fig. 2), 

 the black spots are confluent into longitudinal bands on the sides of the belly. 



Youn°\ just out of the egg, are dark grey above with round or vermicular lighter 

 spots ; a black vertebral line is often present ; the two lateral streaks are usually very 

 distinct and formed of more or less confluent white spots ; the blackish band between 

 them, continued from the temple, bears small round white spots ; limbs blackish, spotted 

 with white ; lower parts white. (See text-fig. 4 a, p. 369, and text-fig. 6 a, p. 399.) 

 Measurements of adults (in millimetres) : — 



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



From snout to vent 72 67 62 60 57 59 



„ fore limb 28 22 25 21 24 21 



Length of head 18 14 16 14 15 13 



Width of head 12 9 11 9 9 9 



Depth of head 9 7 8 7 7 7 



Fore limb. . 23 20 23 19 20 18 



Hind limb .35 30 35 30 30 26 



Foot 20 17 19 16 17 14 



Tail 102* 118 125 97 110 81* 



* Tail reproduced. 



1. J 1 . Glenan Isles, Brittany (Giard). 



2 2 



3. c? . Eaux-Bonnes, Pyrenees (Lataste) . 



4. 2 . ,, ,, ,, 



5. $ . Herkulesbad, Hungary {Mehely). 



O- ? . ;> i> » 



In the following table I give the size and record variations in the lepidosis in a 

 number of adult specimens in the British Museum or in the Lataste Collection : — 



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



Nr. St. Malo <J 66 47 26 11 21 18 1 



2 66 54 30 9 26 20 1 



2 62 50 32 9 26 19 1 



2 53 50 29 9 25 20-22 2 



1 Very well marked in some specimens from Paris, the Pyrenees, and the Alps near Randa. 



