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An illustration based on the real animal.
A little discovery to share.
Male lumpsuckers turn red during the breeding season.
THE REAL WORLD
The real Lumpsucker
- Scientific name
- Cyclopterus lumpus
- Japanese name
- ランプサッカー(ヨコヅナダンゴウオ)
- Group
- Ocean animals
- Order
- Perciformes
- Family
- Cyclopteridae
- Genus
- Cyclopterus
A lumpsucker that lives in the cold North Atlantic. From spring to summer, it comes into shallow water to lay its eggs.
Its English name describes a lumpy fish with a sucker. The many bumps all over its body help protect it.
On its belly is a sucker formed from its pelvic fins, which it uses to cling to rocks.
How the Lumpsucker lives
They usually live in somewhat deep water. They eat animals that live on the sea floor, among other foods.
葛西臨海水族園Basic data
- Size
- Total length: 40 cm
- Diet
- Benthic organisms and other foods
- Range
- North Atlantic
Where the Lumpsucker 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
- 圆鳍鱼
- 繁體中文
- 圓鰭魚
- Español
- Lumpo
- Français
- Lompe
- Deutsch
- Seehase
- Português (Brasil)
- Peixe-lapa
- Italiano
- Ciclottero
- العربية
- شحظار
- Русский
- Пинагор
Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.
Sources and how we check
- 葛西臨海水族園 — ランプサッカーChecked: 2026-11-03
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 mistakeWhen you meet the Lumpsucker, look for this
- Watch for it swimming by fluttering its pectoral and tail fins.
Animals do different things from day to day, so you may not always see this.
葛西臨海水族園EXHIBIT INFORMATION
Places that keep or show the Lumpsucker
Zoos, aquariums and other places whose official websites say they keep or show this animal.
Kanto
Displays can change with the animals’ health and the seasons. Check each facility’s official website before you go.







