Convict grouper
Amazing fact
The sevenband grouper uses its large mouth to swallow fish, squid and crustaceans whole.
三重県水産研究所
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An illustration based on the real animal.
A little discovery to share.
The sevenband grouper uses its large mouth to swallow fish, squid and crustaceans whole.
THE REAL WORLD
The real Convict grouper
- Scientific name
- Hyporthodus septemfasciatus
- Japanese name
- マハタ
- Group
- Ocean animals
- Order
- Perciformes
- Family
- Serranidae
- Genus
- Hyporthodus
A fish of Japanese seas from Hokkaido to Kyushu and the Ogasawara Islands, and of the southern Korean Peninsula and the coast of China.
How the Convict grouper lives
It lays eggs in early summer.
三重県水産研究所Basic data
- Range
- Hokkaido to southern Kyushu, Seto Inland Sea, Ogasawara Islands, southern Korean Peninsula, Jeju Island, Zhejiang, Hong Kong, and elsewhere
Where the Convict grouper 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
- マハタ
- 简体中文
- 七带下美鮨
- 繁體中文
- 七帶下美鮨
- 한국어
- 능성어
- Español
- Mero Carcelario
- Français
- Merou Bagnard
- Português (Brasil)
- Garoupa-de-sete-listras
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 — マハタChecked: 2026-11-04
- 三重県水産研究所 — マハタ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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