Convex Crab
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An illustration based on the real animal.
A little discovery to share.
The convex crab has dark brown tips on its claws and walking legs.
THE REAL WORLD
The real Convex Crab
- Scientific name
- Carpilius convexus
- Japanese name
- ユウモンガニ
- Group
- Ocean animals
- Class
- Malacostraca
- Order
- Decapoda
- Family
- Carpiliidae
- Genus
- Carpilius
It lives in seas south of Sagami Bay, around Hawaii and across the Indian Ocean and the western Pacific.
How the Convex Crab lives
It lives along rocky or coral shores, in the intertidal zone and shallow water.
國立海洋生物博物館（數位典藏與數位學習聯合目錄）Basic data
- Range
- South of Sagami Bay, Hawaii, and the Indo-West Pacific
Where the Convex Crab has been recorded
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
- ユウモンガニ
- 简体中文
- 隆背瓢蟹
- 繁體中文
- 隆背瓢蟹
- Français
- Crabe rouge du récif
- Português (Brasil)
- Caranguejo-coralino-convexo
- Italiano
- Granchio dei coralli rosso
- العربية
- سرطان المرجان
Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.
Sources and how we check
- 鳥羽水族館 — ユウモンガニChecked: 2026-11-04
- 國立海洋生物博物館（數位典藏與數位學習聯合目錄） — 隆背瓢蟹(Carpilius convexus)Checked: 2026-11-07
- 國立臺灣博物館 — 隆背瓢蟹Checked: 2026-11-07
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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