. Breviora. BREVIORA No. 353 Schmidt (1939: 9) mentioned a peculiar feature of the spscies, the double row of keeled scales forming the dorsal caudal margin. This is a feature which A. jacare shares with some South American species and with the very distantly related A. harkeri of Mexico. In 1960 Etheridge placed jacare in the latijrons series of his alpha section of the genus Anolis. This section, distinguished by the absence of transverse processes on the caudal vertebrae, represents an old endemic South American stock, which today shares South America with more recent (beta section) invader
. Breviora. BREVIORA No. 353 Schmidt (1939: 9) mentioned a peculiar feature of the spscies, the double row of keeled scales forming the dorsal caudal margin. This is a feature which A. jacare shares with some South American species and with the very distantly related A. harkeri of Mexico. In 1960 Etheridge placed jacare in the latijrons series of his alpha section of the genus Anolis. This section, distinguished by the absence of transverse processes on the caudal vertebrae, represents an old endemic South American stock, which today shares South America with more recent (beta section) invaders from Central Figure 1. Anolis jacare. Dorsal view of head. AMNH 13444. No previous mention of A. jacare has cited its most interesting feature: alone of native South American species, it shows a close resemblance to West Indian species, specifically those of the Lesser Antilles. In fact, its resemblance to Anolis leachii, except in size, is such that even an experienced student of Anolis, pre- sented with a specimen of jacare without locality, is very likely to confuse it with A. leachii. Table 1 compares A. jacare to A. leachii and to the Leeward Island species more similar in adult size. A. marmoratiis. When A. jacare is closely examined, of course, there should be no real possibility of confusing it with A. leachii. The dorsal squamation of the tail, larger dewlap, relatively larger ventrals. smaller scales on the snout, etc., permit easy recognition of 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. , Museum of Comparative Zoology, Harvard University
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