. Bulletin. Natural history; Natural history. 170 Illinois Natural History Survey Bulletin Vol. 28, Art. 1 Table 45.—Geographic variation in Illinois Eumeces fasciatus. Figures in parentheses are nunabers of specimens. Characteristic Extreme Southern Illinois (20) Range Mean Southern Illinois North OF Shawnee Hills (20) Range Mean Scale rows at mid-body Dorsal scale rows Subdigital lamellae on fourth toe Snout-vent length (mm.) Total length (mm.), maximum. 25-30 50-55 15-19 195 26-30 52-55 15-18 187 skinks are quick and difficult to capture, bu
. Bulletin. Natural history; Natural history. 170 Illinois Natural History Survey Bulletin Vol. 28, Art. 1 Table 45.—Geographic variation in Illinois Eumeces fasciatus. Figures in parentheses are nunabers of specimens. Characteristic Extreme Southern Illinois (20) Range Mean Southern Illinois North OF Shawnee Hills (20) Range Mean Scale rows at mid-body Dorsal scale rows Subdigital lamellae on fourth toe Snout-vent length (mm.) Total length (mm.), maximum. 25-30 50-55 15-19 195 26-30 52-55 15-18 187 skinks are quick and difficult to capture, but usually they are not so alert as fence lizards. Captured specimens try to bite, and often their tails are broken of? unless the animals. Fig. 157.—Distribution of Eumeces fasciatus. Hatching indicates the presumed range of the species in Illinois; solid circles indicate locali- ties represented by specimens examined during this study; the open circle indicates a locality represented by a published record believed to be valid. The lower map depicts the total range of the species in the United States. The species avoids prairie areas. are handled carefully. The food of these skinks consists primarily of arthropods, al- though instances of predation on annelids, moUusks, and vertebrates have been re- ported. Egg clutches of the five-lined skink, at- tended by the female, are to be found in rot- ten logs or stumps in July. Eggs laid by a captive specimen averaged mm.; the eggs increase in size as they develop, and those found in natural nests average X 10 mm. The clutch size in southern Illinois ranges from 6 to 15, averaging about 9 per nest (Cagle 1940). Oviposition occurs in late June, and hatchlings are to be found by late July. Illinois Distribution.—The five-lined skink occurs throughout the southern half of Illinois, fig. 157. It is known in the Northeastern Mesic Forest, and scattered colonies may occur along the Mississippi and Illinois rivers. North of
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