Yellowline arrow crab
Amazing fact
The yellowline arrow crab eats its old shell to obtain material for hardening its new shell.
University of Michigan Animal Diversity Web
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An illustration based on the real animal.
A little discovery to share.
The yellowline arrow crab eats its old shell to obtain material for hardening its new shell.
THE REAL WORLD
The real Yellowline arrow crab
- Scientific name
- Stenorhynchus seticornis
- Japanese name
- ノコギリイッカクガニ（アロークラブ）
- Group
- Ocean animals
- Class
- Malacostraca
- Order
- Decapoda
- Family
- Inachoididae
- Genus
- Stenorhynchus
It has a long horn sticking out from its head that looks like an arrow, which is why it is called the arrow crab.
How the Yellowline arrow crab lives
It is active at night, scavenging for leftover food. It also sometimes catches and eats tiny animals on coral reefs. By day, it tends to hide under ledges and sea fans, or on sponges.
University of Michigan Animal Diversity WebBasic data
- Range
- Atlantic Ocean
Where the Yellowline arrow 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
- 简体中文
- 刺额箭蟹
- 繁體中文
- 刺額箭蟹
- 한국어
- 화살게
- Español
- Cangrejo flecha
- Français
- Crabe flèche
- Deutsch
- Karibische Spinnenkrabbe
- Português (Brasil)
- Caranguejo-aranha
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 — アロークラブChecked: 2026-11-04
- University of Michigan Animal Diversity Web — Stenorhynchus seticornisChecked: 2026-11-06
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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