Dardanus arrosor
Amazing fact
When the Yokosuji hermit crab changes shells, it moves its anemones from the old shell to the new one.
Akvarijum Boka
No sign-up needed. You can save notes on this device.
An illustration based on the real animal.
A little discovery to share.
When the Yokosuji hermit crab changes shells, it moves its anemones from the old shell to the new one.
THE REAL WORLD
The real Dardanus arrosor
- Scientific name
- Dardanus arrosor
- Japanese name
- ヨコスジヤドカリ
- Group
- Ocean animals
- Class
- Malacostraca
- Order
- Decapoda
- Family
- Diogenidae
- Genus
- Dardanus
A large hermit crab that lives from Sagami Bay and the Niigata coast southward across the Indo-West Pacific.
It carries several hermit-crab anemones on its shell, which are thought to keep it safe from enemies such as octopuses.
How the Dardanus arrosor lives
It lives on sandy, rocky or mixed seabeds. It eats remains of dead organisms, small invertebrates and algae. The soft rear part of its body stays inside an empty snail shell.
Akvarijum BokaBasic data
- Size
- Carapace length: up to 8 cm
- Range
- South of Sagami Bay and the Niigata coast, and the Indian and western Pacific oceans
Where the Dardanus arrosor 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
- ヨコスジヤドカリ
- 简体中文
- 鳞片真寄居蟹
- 繁體中文
- 鱗片真寄居蟹
- 한국어
- 털줄왼손집게
- Français
- Grand bernard-l'ermite
- Italiano
- Paguro eremita striato
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 — ヨコスジヤドカリChecked: 2026-11-04
- Akvarijum Boka — Mediterranean hermit crab (Dardanus arrosor)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.
Report a mistakeRELATIVES
Others in Diogenidae
MORE TO MEET
