---
title: "Plain-bellied Watersnake"
description: "Nerodia erythrogaster — Rettili. Nerodia erythrogaster, also known as the plain-bellied water snake or plainbelly water snake, is a common species of semi-aquatic, non-venomous colubrid snake endemic to the United States."
canonical: https://animalchecklist.com/it/animal/plain-bellied-watersnake
last_updated: 2026-09-20
---

# Plain-bellied Watersnake

> Nerodia erythrogaster — Rettili. Nerodia erythrogaster, also known as the plain-bellied water snake or plainbelly water snake, is a common species of semi-aquatic, non-venomous colubrid snake endemic to the United States.

- Scientific name: *Nerodia erythrogaster*
- Category: `reptiles` (Rettili)
- Habitats: `freshwater` (Laghi e fiumi)
- iNaturalist observations: 26881
- Wikidata: [Q3008541](https://www.wikidata.org/wiki/Q3008541)
- iNaturalist taxon: [29328](https://www.inaturalist.org/taxa/29328)

## Names

- en: Plain-bellied Watersnake
- de: Rotbauch-Schwimmnatter
- es: Culebra de agua vientre claro
- fr: Couleuvre d’eau à ventre uni

## Countries with the most observations

US (25504), MX (68)

## Summary

Nerodia erythrogaster, also known as the plain-bellied water snake or plainbelly water snake, is a common species of semi-aquatic, non-venomous colubrid snake endemic to the United States.

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Nerodia_erythrogaster

## Photo

![Plain-bellied Watersnake](https://animalchecklist.com/img/animals/plain-bellied-watersnake/medium.jpg)

Photo: Becky Dill · CC0 · inaturalist — https://www.inaturalist.org/observations/278063604

## Machine access

`GET https://animalchecklist.com/api/v1/animals/plain-bellied-watersnake?lang=it` — see [openapi.json](https://animalchecklist.com/openapi.json).