---
title: "Australian Blue Swimmer Crab"
description: "Portunus armatus — Weitere Tiere. Portunus armatus (also known as Neptunus armatus) is a species of crustacean, a swimming crab in the family Portunidae found in Australia and eastwards to New Caledonia."
canonical: https://animalchecklist.com/de/animal/australian-blue-swimmer-crab
last_updated: 2026-09-20
---

# Australian Blue Swimmer Crab

> Portunus armatus — Weitere Tiere. Portunus armatus (also known as Neptunus armatus) is a species of crustacean, a swimming crab in the family Portunidae found in Australia and eastwards to New Caledonia.

- Scientific name: *Portunus armatus*
- Category: `other` (Weitere Tiere)
- Habitats: `sea` (Meer & Küste)
- iNaturalist observations: 3198
- Wikidata: [Q14159710](https://www.wikidata.org/wiki/Q14159710)
- iNaturalist taxon: [489750](https://www.inaturalist.org/taxa/489750)

## Names

- en: Australian Blue Swimmer Crab

## Countries with the most observations

AU (2648), NC (13)

## Summary

Portunus armatus (also known as Neptunus armatus) is a species of crustacean, a swimming crab in the family Portunidae found in Australia and eastwards to New Caledonia. Common names include blue swimmer crabs, Blue manna, Blueys, and Jennies (for females). The species was originally considered as a geographic variation of Portunus pelagicus, however in 2010 the Portunus pelagicus species was reviewed using DNA, as well as physical characteristics including measurements and four species recognised: Portunus pelagicus, Portunus armatus, Portunus reticulatis and Portunus segnis. The range of Portunus armatus overlaps…

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

## Photo

![Australian Blue Swimmer Crab](https://animalchecklist.com/img/animals/australian-blue-swimmer-crab/medium.jpg)

Photo: Robert McKee · CC0 · inaturalist — https://www.inaturalist.org/observations/198778181

## Machine access

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