. Bulletin. Natural history; Natural history. 192 Illinois Natural History Survey Bulletin Vol. 28, Art. 1. Fig. 184.—An adult Opheodrys aestivus from Monroe County, Illinois. The color above is bright green; below, yellowish white. Table 54.—Geographic variation in Illinois Opheodrys aestivus. Figures in parentheses are numbers of specimens. Characteristic Extreme Southern Illinois (10 Males, 11 Females) Range Mean Southeastern Illinois (13 Males, 8 Females) Range Mean Lower Mississippi Border (6 Males, 5 Females) Range Mean Ventrals Male Female Caudals Male Female Tail length as percentage o
. Bulletin. Natural history; Natural history. 192 Illinois Natural History Survey Bulletin Vol. 28, Art. 1. Fig. 184.—An adult Opheodrys aestivus from Monroe County, Illinois. The color above is bright green; below, yellowish white. Table 54.—Geographic variation in Illinois Opheodrys aestivus. Figures in parentheses are numbers of specimens. Characteristic Extreme Southern Illinois (10 Males, 11 Females) Range Mean Southeastern Illinois (13 Males, 8 Females) Range Mean Lower Mississippi Border (6 Males, 5 Females) Range Mean Ventrals Male Female Caudals Male Female Tail length as percentage of total length Male Female Total length (mm.) 150-170 139-165 126-152 116-132 198-347 ! 150-164 153-171 122-137 116-133 182-836 149-161 154-157 119-133 121-128 ^ 213-684 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 Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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