. Breviora. 10 BREVIORA No. 414 ALTITUDINAL VARIATION IN COLOR CHARACTERS IN PLETHODON ALONG BALL CREEK WATERSHED. 2300 2500 2700 2900 3100 3300 3500 3700 3900 4100 4300 ALTITUDE (feet). 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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