---
title: "Western Narrow-mouthed Toad"
description: "Gastrophryne olivacea — Anfibi. Gastrophryne olivacea, the Great Plains narrow-mouthed toad or western narrow-mouthed toad, is a species of microhylid frog found throughout much of the south-central United States from Nebraska south through Texas, and into northern Mexico."
canonical: https://animalchecklist.com/it/animal/western-narrow-mouthed-toad
last_updated: 2026-09-20
---

# Western Narrow-mouthed Toad

> Gastrophryne olivacea — Anfibi. Gastrophryne olivacea, the Great Plains narrow-mouthed toad or western narrow-mouthed toad, is a species of microhylid frog found throughout much of the south-central United States from Nebraska south through Texas, and into northern Mexico.

- Scientific name: *Gastrophryne olivacea*
- Category: `amphibians` (Anfibi)
- Habitats: `grassland` (Prati e campi)
- iNaturalist observations: 5309
- Wikidata: [Q2720420](https://www.wikidata.org/wiki/Q2720420)
- iNaturalist taxon: [134277](https://www.inaturalist.org/taxa/134277)

## Names

- en: Western Narrow-mouthed Toad
- es: Sapo boca angosta oliváceo
- fr: Crapaud à bouche étroite de l'Ouest
- nl: Westelijke smalbekkikker

## Countries with the most observations

US (3934), MX (98)

## Summary

Gastrophryne olivacea, the Great Plains narrow-mouthed toad or western narrow-mouthed toad, is a species of microhylid frog found throughout much of the south-central United States from Nebraska south through Texas, and into northern Mexico. Though not a true toad, evidenced by the smooth, moist skin, its common name is due to its terrestrial habit.

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

## Photo

![Western Narrow-mouthed Toad](https://animalchecklist.com/img/animals/western-narrow-mouthed-toad/medium.jpg)

Photo: Alejandro Santillana · CC0 · inaturalist — https://www.inaturalist.org/observations/3101429

## Machine access

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