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Ocean animals

Cymo melanodactylus

Amazing fact

The Kimo crab feeds on coral tissue.

James Cook University
Cymo melanodactylus in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

The Kimo crab feeds on coral tissue.

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THE REAL WORLD

The real Cymo melanodactylus

Scientific name
Cymo melanodactylus
Japanese name
キモガニ
Group
Ocean animals
Class
Malacostraca
Order
Decapoda
Family
Xanthidae
Genus
Cymo
Facts about the real animal.
01

It lives from south of the Kii Peninsula to the South Pacific, Australia, the Indian Ocean and the Red Sea.

02

It lives hidden in gaps in coral reefs in shallow water.

03

It is a very small crab.

Basic data

Size
Body length: about 5–10 mm
Range
South of the Kii Peninsula, the South Pacific, Australia, the Indian Ocean, and the Red Sea
鳥羽水族館

Where the Cymo melanodactylus has been recorded

World map with dots where the Cymo melanodactylus 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
キモガニ
简体中文
黑指波纹蟹
繁體中文
黑指波紋蟹

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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