---
title: "Common keelback"
description: "Tropidonophis mairii — Reptiles. Tropidonophis mairii, also known commonly as Mair's keelback, the common keelback, and the freshwater snake, is a species of colubrid snake in the subfamily Natricinae."
canonical: https://animalchecklist.com/es/animal/common-keelback
last_updated: 2026-09-20
---

# Common keelback

> Tropidonophis mairii — Reptiles. Tropidonophis mairii, also known commonly as Mair's keelback, the common keelback, and the freshwater snake, is a species of colubrid snake in the subfamily Natricinae.

- Scientific name: *Tropidonophis mairii*
- Category: `reptiles` (Reptiles)
- Habitats: `freshwater` (Lagos y ríos)
- iNaturalist observations: 2676
- Wikidata: [Q3062075](https://www.wikidata.org/wiki/Q3062075)
- iNaturalist taxon: [114571](https://www.inaturalist.org/taxa/114571)

## Names

- en: Common keelback
- de: Kielrücken-Wassernatter
- pt: Cobra-de-água-doce

## Countries with the most observations

AU (2563)

## Summary

Tropidonophis mairii, also known commonly as Mair's keelback, the common keelback, and the freshwater snake, is a species of colubrid snake in the subfamily Natricinae. The species is native to Australasia.

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

## Photo

![Common keelback](https://animalchecklist.com/img/animals/common-keelback/medium.jpg)

Photo: Richard Fuller · CC0 · inaturalist — https://www.inaturalist.org/observations/69423405

## Machine access

`GET https://animalchecklist.com/api/v1/animals/common-keelback?lang=es` — see [openapi.json](https://animalchecklist.com/openapi.json).