---
title: "Atlantic Rock Crab"
description: "Cancer irroratus — Other animals. Cancer irroratus (Atlantic rock crab or peekytoe crab) is a crab in the genus Cancer."
canonical: https://animalchecklist.com/animal/atlantic-rock-crab
last_updated: 2026-09-20
---

# Atlantic Rock Crab

> Cancer irroratus — Other animals. Cancer irroratus (Atlantic rock crab or peekytoe crab) is a crab in the genus Cancer.

- Scientific name: *Cancer irroratus*
- Category: `other` (Other animals)
- Habitats: `sea` (Sea & coast)
- iNaturalist observations: 8242
- Wikidata: [Q590283](https://www.wikidata.org/wiki/Q590283)
- iNaturalist taxon: [53739](https://www.inaturalist.org/taxa/53739)

## Names

- en: Atlantic Rock Crab
- es: Cangrejo de rocas del Atlantico
- fr: Tourteau pointclos

## Countries with the most observations

CA (3941), US (3408), IS (142), PM (23)

## Summary

Cancer irroratus (Atlantic rock crab or peekytoe crab) is a crab in the genus Cancer. It is found from Iceland to South Carolina at depths of up to 2,600 ft (790 m), and reaches 133 mm (5.2 in) across the carapace.

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

## Photo

![Atlantic Rock Crab](https://animalchecklist.com/img/animals/atlantic-rock-crab/medium.jpg)

Photo: Ben Keen · CC0 · inaturalist — https://www.inaturalist.org/observations/99006422

## Machine access

`GET https://animalchecklist.com/api/v1/animals/atlantic-rock-crab?lang=en` — see [openapi.json](https://animalchecklist.com/openapi.json).