. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 152 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY o. To the west of gaigeae in Mexico there is another popula- tion in southern Sonora which has been described under the name of hiltoui. The carapace is reticulate dorsally. There is a lonjiitudinal light orange temporal spot behind the eye, not black-bordered and not separated from the eve. The chin is striped, and the plastral pattern is one of discrete paired, rather rectangular, smudges arranged in two lines along the middle of the i)lastron (Fig. 1). This population is
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 152 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY o. To the west of gaigeae in Mexico there is another popula- tion in southern Sonora which has been described under the name of hiltoui. The carapace is reticulate dorsally. There is a lonjiitudinal light orange temporal spot behind the eye, not black-bordered and not separated from the eve. The chin is striped, and the plastral pattern is one of discrete paired, rather rectangular, smudges arranged in two lines along the middle of the i)lastron (Fig. 1). This population is not known to inter- grade with gaigeae or ornata, but Pseudemys from intermediate localities are still Fig. 12. Plastnil pattorn in scripta liiltani type. (After Carr 1942.) 6. Across the Gulf of Baja California in the southern part of the peninsula of that name is an isolated j^opulation named nehulosa by Van Denburgh (1895). This form is described as ihaving rather reticulate markings dorsally on the carapace, an orange or yellow spot, not black-bordered, on the side of the head, a striped chin, and (Fig. 2) a narrow smudged central plastral pattern, not broken into discrete spots, much resembling the plastral figure of Chrysemys picta marginata and with ob- vious similarities also to the plastral pattern of ornata (see below). A specimen (USNM 75854) from La Purisima, La Paz, Lower California has a plastral figurt^ of broken smudges very. 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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