40 Laeertidse. 



Lacerta stlrpium, Daud. Hist. Eept. iii, p. 165, pi. xxxv, fig. 2 

 (1802) ; M.-Edw. Ann. Sc. Nat. xvi, 1829, pp. 65, 83, pi. v, fig. 4 ; 

 Dug^s, t.c., p. 377; Jenyns, Man. Brit. Vert. p. 291 (1835) ; Dum. & 

 Bibr. Erp. Gen. v, p. 196 (1839) ; Fatio, Vert. Suisse, iii, p. 75 

 (1872) ; Martin & KoUinat, Vert. Dep. Indre, p. 282 (1894) ; Letacq, 

 Bull. Soc. Linn. Normand. ix, 1895, p. 117. 



Lacerta laurentii, Daud. t.c, p. 227. 



Lacerta arenicola, Daud. t.c, p. 230, pi. xxxviii, fig. 2. 



Lacerta anguiformis, Sheppard, Tr. Linn. Soc. vii, 1804, p. 51. 



Lacerta ayilis grisea, part., Hermann, Obs. Zool. p. 261 (1804). 



Lacerta europiea, part., Pallas, Zoogr. Eoss.-As. iii, p. 29 (1811). 



Lacerta agilis, var. erythronotug, Pitzing. N. Classif. Eept. p. 51 

 (18,26). 



Lacerta sericea, Gliickselig, Lotos, 1851, p. 113. 



Lacerta agilis, var. ischliensis, Bedriaga, Enst. Farb. Eidechs. p. 18 

 (1874). 



Lacerta agilis, vars. ocellata, atra, F. MuU. Verb. Nat. Ges. Basel, 

 vi, 1878, pp. 412, 624. 



Lacerta viridis, var. transsylvanica, Kimakovicz, Verb. Siebenb. Ver. 

 Nat. xxxviii, 1888, p. 107. 



Lacerta agilis, vars. a/umZaia, eZorsaZis, Werner, op. cit., p. 30. 



Lacerta agilis, vars. immaculata, albolineata, nigricans, melanota, 

 Diirigen, op. cit., p. 153. 



Habit stout,* body not depressed. No very great differences in 

 the proportions between the sexes, these differences sometimes very 

 slight.f Head short and convex, li to li times as long as broad, 

 its depth, in the tympanic region, equal to or a little greater than the 

 distance between the anterior corner of the eye and the anterior 

 border of the tympanum ; its length 3^ to 4 times in length to vent 

 in males, 4 to 5 times in females ; cheeks more or less swollen, 

 especially in males ; snout obtuse, as long as postorbital part of head 

 or as distance from eye to anterior border of tympanum. Pileus \% to 

 2 times as long as broad. Neck as broad as the head, or broader, 

 rarely a little constricted. Limbs short, . slightly overlapping when 

 pressed against the body, or hind limb reaching as far as the elbow 

 in males, just meeting or hind limb reaching the wrist in females ; 

 foot as long as the head or a little shorter ; digits cylindrical, covered 



* In spite of its name the least agile species of the genns. 



t The difficulty of deciding on the sex of certain adult specimens from 

 external characters is increased by the fact that females occasionally assume 

 the coloration of males. 



