. Bonner zoologische Monographien. Zoology. 19 form (Hillenius 1963). Arnold (1980) noted that C. c. arabicus is as distinct from the nearest known C. c. orientalis specimens as some full species, such as C. africanus, are. He, therefore, treated C arabicus as a megasubspecies (or semispecies?) of C. chamaeleon. Our present observations on the hemipenes justifies, we think, this form to be elevated to the specific rank. Chamaeleo zeylanicus Laurenti, 1768 ZFMK 39043, locality unknown Hemipenes stout, pedicel one third of hemipenislength. Truncus set with calyces. Apical ornamentation consists
. Bonner zoologische Monographien. Zoology. 19 form (Hillenius 1963). Arnold (1980) noted that C. c. arabicus is as distinct from the nearest known C. c. orientalis specimens as some full species, such as C. africanus, are. He, therefore, treated C arabicus as a megasubspecies (or semispecies?) of C. chamaeleon. Our present observations on the hemipenes justifies, we think, this form to be elevated to the specific rank. Chamaeleo zeylanicus Laurenti, 1768 ZFMK 39043, locality unknown Hemipenes stout, pedicel one third of hemipenislength. Truncus set with calyces. Apical ornamentation consists of one pair of large somewhat elongate asulcal rotulae and three pairs of smaller sulcal rotulae, that are arranged in two groups. All rotulae have a serrate margin. The transverse ridge separating the asulcal rotulae from the sulcal ones is smooth. Differences with the original description of McCann (1949) are 1) the presence of three pairs of small sulcal rotulae instead of one pair and 2) the absence of a serration on the transverse ridge. Chamaeleo dilepis Leach, 1819 (Fig. 5 a & b) ZFMK 18895 proximity of Mombasa, Kenya Hemipenes clavate, pedicel approximately half of hemipenislength. The truncus is set with large and shallow calyces, whose bordering margins are coarsely Fig. 5 a & b. Hemipenis of C dilepis. a = sulcal view, b = lateral 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 Bonn, Zoologisches Forschungsinstitut und Museum Alexander Koenig
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