---
title: "Giant Keyhole Limpet"
description: "Megathura crenulata — Inne zwierzęta. Megathura crenulata is a northeastern Pacific Ocean species of limpet in the family Fissurellidae known commonly as the great keyhole limpet or giant keyhole limpet."
canonical: https://animalchecklist.com/pl/animal/giant-keyhole-limpet
last_updated: 2026-09-20
---

# Giant Keyhole Limpet

> Megathura crenulata — Inne zwierzęta. Megathura crenulata is a northeastern Pacific Ocean species of limpet in the family Fissurellidae known commonly as the great keyhole limpet or giant keyhole limpet.

- Scientific name: *Megathura crenulata*
- Category: `other` (Inne zwierzęta)
- Habitats: `sea` (Morze i wybrzeże)
- iNaturalist observations: 4936
- Wikidata: [Q205010](https://www.wikidata.org/wiki/Q205010)
- iNaturalist taxon: [48645](https://www.inaturalist.org/taxa/48645)

## Names

- en: Giant Keyhole Limpet
- de: Große Kalifornische Schlüssellochschnecke
- es: Abulón Chino

## Countries with the most observations

US (4715), MX (131)

## Summary

Megathura crenulata is a northeastern Pacific Ocean species of limpet in the family Fissurellidae known commonly as the great keyhole limpet or giant keyhole limpet. Megathura is a monotypic genus; in other words, this is the only species in that genus. This species occurs along the rocky coast of western North America, its distribution extending from Southern California to the Baja California peninsula in Mexico. It is found in the intertidal zone and in the sea up to a depth of 33 meters.

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

## Photo

![Giant Keyhole Limpet](https://animalchecklist.com/img/animals/giant-keyhole-limpet/medium.jpg)

Photo: Dr Austin Hendy · CC0 · inaturalist — https://www.inaturalist.org/observations/194703850

## Machine access

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