The Sleeper torpedo ray (Crassinarke dormitor) is a saltwater fish of the family Narkidae that grows up to 30 cm.
Description
The sleeper torpedo ray is a small electric ray (Narkidae) from shallow sand and mud water of the northwest Pacific. The species grows to about 30 cm and has a round, flat, soft disc with a short tail. In its 'wings' it carries electric organs with which it delivers a jolt to stun prey and defend itself. Half-buried it waits for small crustaceans, worms and small fish. A touch can give a person an unpleasant electric shock.
Frequently asked questions
How do you recognise the Sleeper torpedo ray?
The Sleeper torpedo ray has a flattened, disc-shaped body and is mainly brown. Bears sharp spines, plates or strong jaws that can cause cuts or puncture wounds; handle with care.
Where does the Sleeper torpedo ray live?
The Sleeper torpedo ray lives in the sea (marine waters) and is mostly found around sand or mud bottom. Asia: China, Taiwan/Ch Taipei, Japan
How big does the Sleeper torpedo ray get?
The Sleeper torpedo ray grows to a maximum of about 30 cm.
Is the Sleeper torpedo ray dangerous to humans?
The Sleeper torpedo ray can cause injury; handle it with care. This fish can deliver an electric shock that causes muscle cramp and a startle reaction; do not touch it. Someone receiving an unexpected shock in the water may briefly lose control, which is dangerous while swimming. For persistent symptoms or a fall caused by the shock, see a doctor.

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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
More from the family Narkidae

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