THE HERPETOLOGY OF HISPANIOLA 

 Table 26. — Specimens of Anolis distichus juliae examined 



151 



ANOLIS DISTICHUS ALTAVELENSIS Noble and Hassler 



Figure 50 



1933. Anolis dominicensis altavelensis Noble and Hassler, Amer. Mus. Nov., 

 No. 652, p. 9.— Barbour, Zoologica, vol. 19, No. 3, p. 113, 1935. 



1937. Anolis distichus altavelensis Barbour, Bull. Mus. Come Zool., vol. 82, 

 No. 2. p. 126. 



Original description. — "Diagnostic Characters. — Closely allied 

 to Anolis dominicensis Reinhardt and Liitken of the mainland of 

 Hispaniola, but differing from it conspicuously in its bright reddish- 

 brown color in life; preserved specimens being a pale tan or brownish 

 gray. The scalation of the tail is also distinctive, the scales on the 

 upper surface of the side being larger than in dominicensis and grad- 

 ually increasing in size from the anterior to the posterior margin of 

 each segment. The crest of the tail is lobulated, owing to the fact that 

 the third and fourth scales in each segment are larger than the 

 other scales forming the crest of that segment. 



"Detailed Description. — Type: A.M.N.H. No. 51050, adult 

 male. Collected at Alta Vela Island, D. R., October 9-10, 1932, by 

 W. G. Hassler. 



"Head slightly narrower than that of A. dominicensis; frontal 

 ridges weakly developed, extending slightly anterior to the orbit; 

 rostral small, one-third narrower than the mentals; four scale-rows 

 between the scales that are pierced by the nostrils; six irregular pairs 

 of roughly rectangular scales on the snout extending from the rostral 

 to the supraorbital semicircles and forming a continuous series with 

 them; these gradually increasing in size posteriorly and each pair 

 making contact in the midline, except for the most posterior pair 

 which are separated by a small scale; supraorbital semicircles on each 

 side making a broad contact with one another in the interorbital 

 region; the anterior pair of scales in the combined series separated 

 for about one-half their length by a small scale which is approximately 

 the size of the scale separating the most posterior pair of enlarged 

 scales on the snout; occipital slightly longer than ear opening and 



