. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Urostrophus and Anisolepis • Etheridge and Williams 333 scales rather than being abruptly larger, nape without enlarged, erect scales, no dorsolateral rows of enlarged, keeled scales, supradigital scales of hand smooth rather than indistinctly uni- or multicarinate, keeled ventral scales in more (17 to 25 versus 13 to 19) longitudinal rows, and a larger adult size (maximum snout-vent length of females 97 mm, males 79 mm, versus females 83 mm, males 70 mm). A. grilli differs from A. longicauda in having a larger extern
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Urostrophus and Anisolepis • Etheridge and Williams 333 scales rather than being abruptly larger, nape without enlarged, erect scales, no dorsolateral rows of enlarged, keeled scales, supradigital scales of hand smooth rather than indistinctly uni- or multicarinate, keeled ventral scales in more (17 to 25 versus 13 to 19) longitudinal rows, and a larger adult size (maximum snout-vent length of females 97 mm, males 79 mm, versus females 83 mm, males 70 mm). A. grilli differs from A. longicauda in having a larger external ear, larger than the in- terparietal scale rather than conspicuously smaller, in having an antehumeral-trans- verse gular fold, and a shorter tail (mean tail/total length in males , females , versus males , females ). Etymology. Named after Dr. G. Franco Grillo, collector of the syntypes. Description. Head (Fig. 4). Head scales small to moderate, smooth, swollen, vari- able in size. Rostral subpentagonal, twice to about three times as wide as high. Post- rostrals 6 or 7. Nasal ovoid, nostril slightly posterior in position, in contact with the first supralabial or separated from it by 1 scale, separated from the rostral by 1 post-. 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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