Draughtsboard shark
Amazing fact
The blotchy swell shark has threads on its egg cases that stretch and contract like springs.
新潟市水族館 マリンピア日本海
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An illustration based on the real animal.
A little discovery to share.
The blotchy swell shark has threads on its egg cases that stretch and contract like springs.
THE REAL WORLD
The real Draughtsboard shark
- Scientific name
- Cephaloscyllium umbratile
- Japanese name
- ナヌカザメ
- Group
- Ocean animals
- Class
- Chondrichthyes
- Order
- Carcharhiniformes
- Family
- Scyliorhinidae
- Genus
- Cephaloscyllium
A shark that lives in the seas from southern Hokkaido to the East China Sea and Taiwan.
How the Draughtsboard shark lives
It is active at night. During the day, it stays still in places such as the shelter of rocks. Its eggs are enclosed in brown, translucent cases.
新潟市水族館 マリンピア日本海Basic data
- Conservation status in Japan
- Data Deficient (DD)Ministry of the Environment of Japan, Marine Red List (2017)
Where the Draughtsboard shark 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
- ナヌカザメ
- 简体中文
- 阴影绒毛鲨
- 繁體中文
- 汙斑頭鯊
- 한국어
- 복상어
- Español
- Pejegato japonés
- Deutsch
- Gefleckter Schwellhai
- Português (Brasil)
- Tubarão-balão-mármore
- Italiano
- Gattuccio elegante maculato
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 — ナヌカザメChecked: 2026-11-04
- 新潟市水族館 マリンピア日本海 — ナヌカザメChecked: 2026-11-07
- Ministry of the Environment of Japan, Marine Red List (2017)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 conservation status in Japan is the category in the Red Lists of the Ministry of the Environment of Japan, which assess the risk of extinction for wild animals in Japan.
This page was translated from the original Japanese with the help of AI.
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