Amphibiaus and Reptiles of Mexico. 313 



Anolis Scillae l Günthee. 



Not uncommon in tlie forests oii tlie Hacienda de Cuatotolapani, 

 The specimens obtained confoim in structural characters with 

 Boülenger's description of tlie species, but as tlie publislied de- 

 scriptions of tlie color leave mucli to be desired a brief discussion of 

 the coloration in our material is g-iven. In tlie males tlie flanks are 

 usualjy very pale, being- somewhat darker tliaii tlie belly, occasionally 

 as dark as the back. Along the sides of the back tliere is in all 

 of the specimens a light yellowish (171, 221) band that begins on 

 the neck in front of the Shoulder, the two enclosing a dorsal band 

 that is in all cases darker (162, 138) than the sides, although occasio- 

 nally but slightly. In all specimens the dorsal band is nioie or less 

 mottled with pale yellow, which may form rather deftiiite spots or 

 cross bars, and alon^ the vertebral line there is generally an iniper- 

 fect row of small black spots. The latter may be entirely wanting. 

 Occasionally there is a trace of a pale yellow median line. The 

 color of the back is continued on the head, which may also be blot- 

 ched with yellow, The occipital plate is usually pale, and in one 

 specimen there is a dark blotch on the top of the snout just in front 

 of the eyes. The sides of the head are like the top except for the 

 following niarks: a very pale yellow (153a) band above the niouth 

 and continued through the ear on the neck, separated from the pale 

 color of the throat by a faint, broken line of dark brown; a dark 

 brown band from the eye to the Shoulder. In one specimen the pale 

 band is continued along- the flanks, and is indicated there in several 

 others. Ventral surface very pale yellow (lö3a) without markings 

 except on pouch. Ground color of pouch orange yellow (161). A large 

 bright blue (401, 441) spot and a marginal series of small red orange 

 (86, 106) ones. 



In none of the females obtained by us is there inore than a 

 trace of the lateral light bands present in the males. Altho there 

 is no distinct dimorphism, there being- many intermediates, the 

 female specimens may be divided into two lots the extremes of 

 which are very different, — those in which the pale color (153d) of 

 the flanks (itself occasionally quite dark, eg. 162) blends gradually 

 with the (offen only slightly) darker color of the back, and those 

 in which the dark (115, 133) lateral head bands are continued upon 

 the body and base of the tail inclosing a broad vertebral band that 

 may or may not be much paler. In the individuals without lateral 



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