---
title: "Grzechotnik górski"
description: "Crotalus molossus — Gady. The black-tailed rattlesnake (Crotalus molossus) is a venomous pit viper species found in the southwestern United States and Mexico."
canonical: https://animalchecklist.com/pl/animal/western-black-tailed-rattlesnake
last_updated: 2026-09-20
---

# Grzechotnik górski

> Crotalus molossus — Gady. The black-tailed rattlesnake (Crotalus molossus) is a venomous pit viper species found in the southwestern United States and Mexico.

- Scientific name: *Crotalus molossus*
- Category: `reptiles` (Gady)
- Habitats: `desert` (Pustynia)
- iNaturalist observations: 6439
- Wikidata: [Q2254464](https://www.wikidata.org/wiki/Q2254464)
- iNaturalist taxon: [515948](https://www.inaturalist.org/taxa/515948)

## Names

- en: Western Black-tailed Rattlesnake
- de: Schwarzschwanz-Klapperschlange
- es: Cascabel de cola negra
- fr: Serpent à sonnette à queue noire
- pl: Grzechotnik górski

## Countries with the most observations

US (3527), MX (2471)

## Summary

The black-tailed rattlesnake (Crotalus molossus) is a venomous pit viper species found in the southwestern United States and Mexico. Four subspecies are currently recognized, including the nominate subspecies described here.

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

## Photo

![Grzechotnik górski](https://animalchecklist.com/img/animals/western-black-tailed-rattlesnake/medium.jpg)

Photo: Tero Linjama · CC0 · inaturalist — https://www.inaturalist.org/observations/248991369

## Machine access

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