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Saltmarsh Snake vs. Banded Watersnake

They meet where fresh and salt marshes join along the Texas coast, and they hybridise there. A: Four dark stripes along the body, two on each side in the Saltmarsh Snake; wide dark crossbands across the back in the Banded Watersnake. B: Small: 15 to 30 in in the Saltmarsh Snake; bigger: 24 to 42 in in the Banded Watersnake. Hybrids show stripes on the neck breaking into blotches behind. The Saltmarsh Snake's belly is dark with a row of pale spots.

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Saltmarsh Snake

Nerodia clarkii

Banded Watersnake

Nerodia fasciata
Saltmarsh Snake vs. Banded 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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