THE HERPETOLOGY OF HISPANIOLA 179 



under the ear and over the shoulder as far as the axilla, where it 

 fades out; throat pale NUe blue; remainder of ventral surface olive- 

 buflP, immaculate; fingers and toes faintly ringed with light olive- 

 gray; skin of gular fan pale olive-gray, its scales pale Nile blue. 



Variations. — There appears to be a somewhat greater degree of 

 variation among the individuals of this species than in its close ally 

 A. chloro-cyanus. In 22 examples of coelestinus that have been ex- 

 amined, the supraorbital semicircles are separated by one row of 

 scales in 7 cases, by two rows in 13 cases, and by three rows in 2 

 cases. A considerable variation is shown in the number of scales 

 separating the supraorbital semicircles from the occipital, ranging 

 all the way from three to seven, but with three and four most commonly 

 met with. Loreal rows number four to seven, with five found most 

 frequently. Sometimes the ventral scales are entirely smooth as 

 in the individual just described; often they have faint keels, wnile 

 in a young example from Grande Cayemite Island (M.C.Z. No. 

 25483 B) they are heavily keeled. Most specimens have the white 

 line below the eye, although it may be faint, as in the type (M.C.Z. 

 No. 3347), or not visible at all, as in the adult from Grande Cayemite 

 (M.C.Z. No. 25483 A). 



A young hzard from the Citadel of King Christophe (M.C.Z. 

 No. 25485) showed the following color pattern: Above mottled with 

 dark gray and sepia; a light dorsal line with diamond-shaped dark 

 brown patches approaching it from each side at intervals and set off 

 by light posterior margins; a dark scalloped band on the nape of the 

 neck, with a very definite dark posterior margin, which is further 

 accented by a pale tan area directly followLug it; a butterfly-shaped 

 dark spot across the occipital region; two dark bands across the 

 supraorbital region; top and sides of snout marbled with dark and 

 light; a wide light gray stripe leaving the posterior border of the ear 

 and continuing about halfway to the shoulder, at which point it 

 abruptly ends; a light stripe, issuing from beneath this ending, con- 

 tinues above the shoulders and fades out gradually behind the axilla; 

 limbs marbled with tan and brown; tail dark gray above, rather uni- 

 form; under surfaces of arms, legs, and tail pale yellowish white, 

 tliroat with pale-brown reticulations over it; belly light blue-green, 

 highly iridescent; heavy brown marblings all over lower labials and 

 sides of chin; center of throat with two pale brown stripes marking 

 off each side of where the gular fan later wUl develop. The newly 

 hatched young from the same locahty has traces of these markings. 

 In addition, the light line begins under the eye, and very distinctly 

 passes over the lower half of the ear and above the shoulder, fading 

 out halfway to the groin. 



The two examples from Grande Cayemite are high in scale count, 

 each having three rows of scales between the supraorbital semicircles, 



