Shaggy sea raven

Amazing fact

The shaggy sea raven sheds the skin on its body.

アクアマリンふくしま

Shaggy sea raven in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

The shaggy sea raven sheds the skin on its body.

Sourceアクアマリンふくしま — ケムシカジカ

THE REAL WORLD

The real Shaggy sea raven

Scientific name: Hemitripterus villosus
Japanese name: ケムシカジカ
Group: Ocean animals

Order: Perciformes
Family: Hemitripteridae
Genus: Hemitripterus

Facts about the real animal.

Where the name “Shaggy sea raven” comes from

The shaggy sea raven gets its Japanese name from the fine spines all over its body.

アクアマリンふくしま

It lives along the coasts of Hokkaido and Honshu and in the Sea of Okhotsk, the Bering Sea, Alaska and around the Korean Peninsula.

鳥羽水族館 — ケムシカジカ

The spines on its dorsal fin are a striking feature.

鳥羽水族館 — ケムシカジカ

It often stays still on the sea floor.

鳥羽水族館 — ケムシカジカ

How the Shaggy sea raven lives

It feeds on fish and crustaceans. In winter it moves into shallow water to lay eggs. It lays eggs among colonies of animals such as marine worms. The eggs are fertilized after being laid in seawater.

男鹿水族館GAO 北海道

Basic data

Range: Hokkaido, the Sea of Okhotsk, the Bering Sea, the Kuril Islands, the Gulf of Alaska, and elsewhere

鳥羽水族館

Where the Shaggy sea raven has been recorded

Records: GBIF.org (CC0 and CC BY 4.0 records, retrieved 2026-11-07). Map: Natural EarthSee the records on GBIF

Where it livesJapan Asia North America Coasts

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: ケムシカジカ
简体中文: 绒杜父鱼
繁體中文: 絨杜父魚
한국어: 삼세기
Русский: Волосатая рогатка

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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