SYSTEMATIC ACCOUNT OF THE SPECIES. 133 
24. ANOLIS EQUESTRIS Merrem. 
Plate 14, fig. 5. 
Camaleén; Camaleén verde; Chipojo. 
Diagnosis: — A large, usually green, lizard with the upper surface of the 
head developed into a casque, studded with rough tubercles, also with a greatly 
developed gular pouch which in life is a vivid chrome-yellow. 
Description: — Adult M. C. Z. 7,906. Cuba: Madruga, Spring of 1910. 
Thomas Barbour. 
Head large, top of head flat, with extensive depressions on prefrontal and 
occipital region; the scales of the latter area being small and roughly tubereu- 
lated, while those on the snout are larger and much more heavily corrugated; 
a group of flat plate-like scales on each supraorbital region; supraorbital semi- 
circles prominent thin laminar scales set side by side, their long axes parallel; 
the circles separated by three or four rows of small tubercular seales; the series 
of scales forming the supraorbital semicircles continued posteriorly into ridges 
of prominent scales which surround the occipital depression; canthal scales 
‘much enlarged and very heavily tubercular; five or six loreal rows, the scales 
of the rows next to the supralabials the largest; one row of large suboculars, 
the posterior two of which are keeled; ten supralabials to below the centre of 
the eye; temporals flat; ear opening small, round, back and sides covered 
with uniform flat or slightly swollen scales which are separated from each other 
by a narrow zone of soft skin, many of the scales tend to a rounded form; on 
the median line of the neck and back a series of spine-like scales forming a weak 
nuchal and dorsal crest which is continuous on the sacral region with caudal 
crest; ventral scales smooth and tending to imbricate smaller than the scales 
on the sides; scales on fore and hind limbs smooth and pavement-like; digital 
expansions greatly developed, about thirty-seven lamellae under second and 
third phalanges of the fourth toe; tail strongly compressed with a caudal crest 
similar to the dorsal; gular appendage very large, with distinct rows of small 
flat scales on the naked skin, the edge rounded, thickened and sealy; no enlarged 
preanal plates. 
Colour (in life): — Uniform emerald-green; sometimes changing to brown- 
ish or even almost black; sometimes with vertical brown bars on the sides of 
the body, the ground-color being green. A yellowish streak beginning above 
