---
title: "Flattop Crab"
description: "Petrolisthes eriomerus — Andere dieren. Petrolisthes eriomerus is a species of marine porcelain crab found in the eastern Pacific Ocean."
canonical: https://animalchecklist.com/nl/animal/flattop-crab
last_updated: 2026-09-20
---

# Flattop Crab

> Petrolisthes eriomerus — Andere dieren. Petrolisthes eriomerus is a species of marine porcelain crab found in the eastern Pacific Ocean.

- Scientific name: *Petrolisthes eriomerus*
- Category: `other` (Andere dieren)
- Habitats: `sea` (Zee en kust)
- iNaturalist observations: 1749
- Wikidata: [Q3932518](https://www.wikidata.org/wiki/Q3932518)
- iNaturalist taxon: [47803](https://www.inaturalist.org/taxa/47803)

## Names

- en: Flattop Crab

## Countries with the most observations

US (960), CA (722)

## Summary

Petrolisthes eriomerus is a species of marine porcelain crab found in the eastern Pacific Ocean. It is commonly known as the flattop crab. It is a flattened, rounded animal, with a carapace up to 20 mm (0.8 in) across. It is a filter feeder, and also sweeps food from rocks.

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

## Photo

![Flattop Crab](https://animalchecklist.com/img/animals/flattop-crab/medium.jpg)

Photo: Randal · CC0 · inaturalist — https://www.inaturalist.org/observations/23088981

## Machine access

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