---
title: "Western Harvest Mouse"
description: "Reithrodontomys megalotis — Mamíferos. The western harvest mouse (Reithrodontomys megalotis) is a small neotomine mouse native to most of the western United States."
canonical: https://animalchecklist.com/pt/animal/western-harvest-mouse
last_updated: 2026-09-20
---

# Western Harvest Mouse

> Reithrodontomys megalotis — Mamíferos. The western harvest mouse (Reithrodontomys megalotis) is a small neotomine mouse native to most of the western United States.

- Scientific name: *Reithrodontomys megalotis*
- Category: `mammals` (Mamíferos)
- Habitats: `grassland` (Campos e prados)
- iNaturalist observations: 1141
- Wikidata: [Q531971](https://www.wikidata.org/wiki/Q531971)
- iNaturalist taxon: [44431](https://www.inaturalist.org/taxa/44431)

## Names

- en: Western Harvest Mouse
- de: Westliche Erntemaus
- es: Ratón cosechero común
- fr: Souris des moissons occidentale
- nl: Westelijke oogstmuis
- pl: Ploniarka zachodnia

## Countries with the most observations

US (419), MX (26), CA (6)

## Summary

The western harvest mouse (Reithrodontomys megalotis) is a small neotomine mouse native to most of the western United States. Many authorities consider the endangered salt marsh harvest mouse to be a subspecies, but the two are now usually treated separately.

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

## Photo

![Western Harvest Mouse](https://animalchecklist.com/img/animals/western-harvest-mouse/medium.jpg)

Photo: Anne Parsons · CC0 · inaturalist — https://www.inaturalist.org/observations/184442660

## Machine access

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