. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. Figure 6. Sibynomorphus oligozonatus. Dorsal and ventral views of MUSM 2192 from an unknown locality in Piura De- partment, Peru. Male, 348 mm SVL irregular in shape and poorly formed, whereas the dorsal saddles have a more regular shape. The venter is yellowish white with scattered dark markings, which become denser posteriorly and are mostly dis- posed on the lateral portions of the ventral plates. The top of head has bold, crisp (sharp edged) ir- regular blackish reticulations and spots in no distinct patt
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology; Zoology. Figure 6. Sibynomorphus oligozonatus. Dorsal and ventral views of MUSM 2192 from an unknown locality in Piura De- partment, Peru. Male, 348 mm SVL irregular in shape and poorly formed, whereas the dorsal saddles have a more regular shape. The venter is yellowish white with scattered dark markings, which become denser posteriorly and are mostly dis- posed on the lateral portions of the ventral plates. The top of head has bold, crisp (sharp edged) ir- regular blackish reticulations and spots in no distinct pattern. Supra- and infralabials are yellowish with bold black suture lines. Posterior to the region of bold head markings are a pair of scale rows relatively free of markings, forming a narrow pale nape collar; then follows the first crossband. MUSM 2192 (Fig. 6): Dorsal crossbands are pale, somewhat reddish brown, each with a narrow (<1 dorsal scale row wide) dark brown border. Interspac- es grayish. First neck crossband is 11 scale rows wide; then follow 11 to 12 discrete crossbands, progressive- ly narrowing from 7—9 rows wide anteriorly to 4 rows wide posteriorly. Crossbands extend ventrally to the outer edges of the ventral scutes. Pale interspaces are —2 scale rows wide. The venter is immaculate gray- ish with a few small punctations on the edges of the plates. The top of the head is pale grayish brown with darker irregular spots (large spots on anterior edges of parietals and on other head scales). Supralabials have a few dark lines, but are generally pale. Infra- labials and gular region are pale. Etymology. The specific epithet, oligo- zonatus, comes from the Greek words oil-. 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. :
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