. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. RUIBAL AND WILLIAMS: ANOLIS ALLISONI 185 than or equal to the ventrals; tail round in cross section. The body color is variable and changeable; it may be yellow, green, grey, blue, brown or variegated. There is pronounced sexual dimorphism. The males are larger, and are characterized by well-marked frontal and/or canthal ridges. The head scales are rugose; there is a reddish or mauve dewlap and enlarged post- cloacal scales. In contrast, the females are smaller and lack the enlarged postcloacal scales; they also lack
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. RUIBAL AND WILLIAMS: ANOLIS ALLISONI 185 than or equal to the ventrals; tail round in cross section. The body color is variable and changeable; it may be yellow, green, grey, blue, brown or variegated. There is pronounced sexual dimorphism. The males are larger, and are characterized by well-marked frontal and/or canthal ridges. The head scales are rugose; there is a reddish or mauve dewlap and enlarged post- cloacal scales. In contrast, the females are smaller and lack the enlarged postcloacal scales; they also lack frontal ridges or elevated canthal ridges, the head scales are multicarinate, the dewlap is Figure 1. Dorsal view of the tip of the snout of a specimen of A. por- catus from Oriente. The earolinensis group characters of the rostral are shown: five scales bordering the rostral posteriorly and three scales be- tween the rostral and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
