---
title: "Western Massasauga"
description: "Sistrurus tergeminus — Gady. Sistrurus tergeminus, also known commonly as the western massasauga, is a species of rattlesnake native to the southwestern plains of the United States and northern Mexico."
canonical: https://animalchecklist.com/pl/animal/western-massasauga
last_updated: 2026-09-20
---

# Western Massasauga

> Sistrurus tergeminus — Gady. Sistrurus tergeminus, also known commonly as the western massasauga, is a species of rattlesnake native to the southwestern plains of the United States and northern Mexico.

- Scientific name: *Sistrurus tergeminus*
- Category: `reptiles` (Gady)
- Habitats: `grassland` (Łąki i pola)
- iNaturalist observations: 1913
- Wikidata: [Q7531459](https://www.wikidata.org/wiki/Q7531459)
- iNaturalist taxon: [520470](https://www.inaturalist.org/taxa/520470)

## Names

- en: Western Massasauga
- de: Wüsten-Massasauga
- es: Cascabel norteña
- fr: Sistrurus catenatus tergeminus
- it: Sistrurus catenatus tergeminus
- nl: Sistrurus catenatus tergeminus
- pt: Sistrurus catenatus tergeminus

## Countries with the most observations

US (1729), MX (8)

## Summary

Sistrurus tergeminus, also known commonly as the western massasauga, is a species of rattlesnake native to the southwestern plains of the United States and northern Mexico. Like all rattlesnakes, it is a pit viper and is venomous.

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

## Photo

![Western Massasauga](https://animalchecklist.com/img/animals/western-massasauga/medium.jpg)

Photo: texakan · CC0 · inaturalist — https://www.inaturalist.org/observations/319228646

## Machine access

`GET https://animalchecklist.com/api/v1/animals/western-massasauga?lang=pl` — see [openapi.json](https://animalchecklist.com/openapi.json).