Illinois Natural History Survey - University of Illinois

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So far you’ve chosen: Pit between eye and nostril absent; scales on underside of tail in 2 rows; All scales smooth; Anal plate divided; Neck without light-colored ring

Dorsal scale rows at mid-body 15 or fewer

Dorsal scale rows at mid-body 17 or more



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Last updated Wednesday, 16-Sep-2009 14:07:41 CDT

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