Wildsight
Compare two species

Broad-banded Copperhead vs. Diamondback Watersnake

They meet along streams and lakes from Kansas to Texas (records share 40 one-degree squares). A: A heat pit and a vertical pupil in the Broad-banded Copperhead; no pit; a round pupil in the Diamondback Watersnake. B: Separate broad crossbands in the Broad-banded Copperhead; a dark chain or net around pale diamonds in the Diamondback Watersnake. C: Young: a bright yellow tail tip in the Broad-banded Copperhead; young: the dark net already, no bright tail tip in the Diamondback Watersnake. The copperhead is venomous: leave it alone.

Open this comparison in Wildsight

Broad-banded Copperhead

Agkistrodon laticinctus

Diamondback Watersnake

Nerodia rhombifer
Broad-banded Copperhead vs. Diamondback Watersnake: comparison sheet with the differences marked

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

More comparisons

Wildsight identifies the reptiles and amphibians of the United States. Every comparison