Daniel Heuclin / Brown-banded Southern Water Snake (Nerodia fasciata) head in profile as it tastes the air with tongue. Controlled conditions. Lake Fausse-Pointe State Park, Louisiana, USA, November.

Morley Read / Brown-banded water snake (Helicops angulatus) swallowing a Basin treefrog (Boana lanciformis) in a pool full of tadpoles in rainforest, Orellana Province, Ecuador. (non-ex)

Morley Read / Brown-banded water snake (Helicops angulatus) swallowing a Basin treefrog (Boana lanciformis) in a pool full of tadpoles in rainforest, Orellana Province, Ecuador. (non-ex)

MYN / JP Lawrence / Brown-banded water snake (Helicops angulatus) San Jose de Payamino, Ecuador. Meetyourneighbours.net project

Konrad Wothe / Brown-banded water snake (Helicops angulatus) in river, Panguana Reserve, Huanuco province, Amazon basin, Peru.

MYN / Andrew Snyder / Brown-banded watersnake (Helicops angulatus), Berbice River, Guyana, September. Meetyourneighbours.net project.

MYN / Andrew Snyder / Brown-banded watersnake (Helicops angulatus), Berbice River, Guyana, September. Meetyourneighbours.net project.

MYN / Andrew Snyder / Banded watersnake (Helicops angulatus) Iwokrama, Guyana. Meetyourneighbours.net project

Daniel Heuclin / Brown-banded Southern Water Snake (Nerodia fasciata) head in profile. Controlled conditions. Lake Fausse-Pointe State Park, Louisiana, USA, November.

Daniel Heuclin / Brown-banded Southern Water Snake (Nerodia fasciata) in wetland habitat. Controlled conditions. Lake Fausse-Pointe State Park, Louisiana, USA, November.