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Coluber constrictor priapus
Average adult size is 20-56 inches (50-142 cm), record is 72 inches (182 cm). Adult color is black with white markings on the chin and throat. The belly is grayish to uniform black. The body is slender and the scales are smooth, and there are 17 dorsal scale rows at midbody. The pupil is round. Juvenile color is gray with distinct reddish-brown blotches fading into a solid-colored tail.