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Banded Watersnake vs. Mississippi Green Watersnake

The owner's pair: their ranges overlap in the lower Mississippi valley (records shared). A: The eye touches the upper lip scales in the Banded Watersnake; a row of small scales between the eye and the upper lip scales in the Mississippi Green Watersnake. B: Wide dark crossbands in the Banded Watersnake; plain dark olive-green, faint dark bars at most in the Mississippi Green Watersnake. C: Yellowish with dark squares or wavy marks (no open photo shows it) in the Banded Watersnake; dark grey-brown with pale yellowish half-moons, darkest toward the tail (no open photo shows it) in the Mississippi Green Watersnake. D: Crossbands all the way down in the Banded Watersnake; faint dark crossbars on greenish-brown, the belly edged yellow in the Mississippi Green Watersnake.

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Banded Watersnake

Nerodia fasciata

Mississippi Green Watersnake

Nerodia cyclopion
Banded Watersnake vs. Mississippi Green Watersnake: comparison sheet with the differences marked

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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