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Freshwater animals

Marron

Amazing fact

Female marron carry eggs under their tails, where the eggs hatch.

Department of Water and Environmental Regulation, Western Australia
Marron in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

Female marron carry eggs under their tails, where the eggs hatch.

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THE REAL WORLD

The real Marron

Scientific name
Cherax cainii
Japanese name
マロン
Group
Freshwater animals
Class
Malacostraca
Order
Decapoda
Family
Parastacidae
Genus
Cherax
Facts about the real animal.
01

A crayfish from southwestern Australia that grows large.

02

It is usually brown or black, but blue ones are seen on rare occasions.

How the Marron lives

It lives in rivers, lakes and ponds that hold water permanently. Large pieces of wood in the water provide shelter from birds and fish. It eats woody material, algae and small animals attached to it.

Department of Water and Environmental Regulation, Western Australia

Basic data

Range
Southwestern Australia
鳥羽水族館

Where the Marron has been recorded

World map with dots where the Marron has been recorded
Each dot marks a place with observations or specimens shared on GBIF. Some records are of animals that strayed or were brought by people, so the dots are not always where the animal lives.

Records: GBIF.org (CC0 and CC BY 4.0 records, retrieved 2026-11-07). Map: Natural EarthSee the records on GBIF

Watch wild animals from a distance. Do not touch or feed them, and take care of the places where they live.

Names around the world

日本語
マロン

Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.

Sources and how we check

We check each fact against its source. The illustrations simplify how the real animal looks.

The classification (class, order, family, genus) follows Wikidata records, checked against GBIF. Classifications can change as research goes on.

The basic data are the values given in each source. They vary with how the animal is measured, whether it is male or female, and whether it lives in the wild or in captivity.

This page was translated from the original Japanese with the help of AI.

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