Oncopagurus monstrosus

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An illustration based on the real animal.
A little discovery to share.
Oncopagurus monstrosus uses a shell-like home made by a sea anemone.
THE REAL WORLD
The real Oncopagurus monstrosus
- Scientific name
- Oncopagurus monstrosus
- Japanese name
- アカモントゲオキヤドカリ
- Group
- Ocean animals
- Class
- Malacostraca
- Order
- Decapoda
- Family
- Parapaguridae
- Genus
- Oncopagurus
It lives in seas from south of Suruga Bay to the Indian Ocean and the western Pacific.
How the Oncopagurus monstrosus lives
The anemone Paracalliactis tsukisome may feed on this hermit crab’s droppings and other material.
熊本大学Basic data
- Range
- Indo-West Pacific and south of Suruga Bay
Where the Oncopagurus monstrosus 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
- アカモントゲオキヤドカリ
- 简体中文
- 弹弓肿寄居蟹
- 繁體中文
- 彈弓腫寄居蟹
Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.
Sources and how we check
- 鳥羽水族館 — アカモントゲオキヤドカリChecked: 2026-11-04
- 熊本大学 — [新種発見] ヤドカリの「宿」を作る “淡い桃色”のイソギンチャク ―万葉集に詠まれた「愛する気持ち」を名前に―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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