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Shortspine spurdog (Squalus mitsukurii) — Squalidae

Shortspine spurdog

Squalus mitsukurii
Family: Squalidae

The Shortspine spurdog (Squalus mitsukurii) is a saltwater fish of the family Squalidae that grows up to 90 cm.

Length
89.8 cm
Water
Saltwater
Depth
29.0–600.0 m
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Venomous / poisonous
Range
Asia: Argentina, Australia, Brazil, Chile, Juan Fernández, Desventuradas Is and others
Edibility
Commonly eaten

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Description

The shortspine spurdog is a dogfish (Squalidae) found worldwide in cool, deeper coastal waters. The species grows to about 1 metre and has a slender, grey, streamlined body with large green eyes and a sharp spine in front of each of the two dorsal fins. As a bottom-oriented hunter it feeds on small fish, squid and crustaceans. The dorsal spines carry a mild venom and can give a painful puncture wound when handled.

Frequently asked questions

How do you recognise the Shortspine spurdog?

The Shortspine spurdog has an elongate, eel-like body and is mainly silver-grey. Bears venomous spines or tissue; handle with great care.

Where does the Shortspine spurdog live?

The Shortspine spurdog lives in the sea (marine waters) and is mostly found around mixed bottom. Asia: Argentina, Australia, Brazil, Chile, Juan Fernández, Desventuradas Is and others

How big does the Shortspine spurdog get?

The Shortspine spurdog grows to a maximum of about 90 cm. On average the species is around 76 cm.

Is the Shortspine spurdog dangerous to humans?

The Shortspine spurdog is venomous — handle spines with care and seek medical help after a sting if needed. For a sting from a fin spine: rinse the wound, remove any visible spine fragments and immerse the part for 30-90 minutes in water as hot as can be tolerated (about 45 C) to break down the venom. The pain can be severe. For marked swelling, a retained spine or signs of infection seek medical care and check tetanus status.

Is the Shortspine spurdog edible?

Yes, the Shortspine spurdog is commonly eaten.

More photos

Shortspine spurdog (Squalus mitsukurii) — Squalidae — 2
iNaturalist ((c) キクラゲ, some rights reserved (CC BY-NC))
Shortspine spurdog (Squalus mitsukurii) — Squalidae — 3
iNaturalist ((c) キクラゲ, some rights reserved (CC BY-NC))
Shortspine spurdog (Squalus mitsukurii) — Squalidae — 4
iNaturalist ((c) キクラゲ, some rights reserved (CC BY-NC))
Shortspine spurdog (Squalus mitsukurii) — Squalidae — 5
iNaturalist ((c) キクラゲ, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Shortspine spurdog sourced
Scientific name
Squalus mitsukurii
Family
Squalidae
Other names
Dogfish; Greeneye; Greeneye dogfish; Greeneye spurdog; Grey spiny dogfish; Longnose spiny dogfish; Northern spiny dogfish; Blainvilles dogfish; Green-eyed dogfish; Northern dogfish; Shortspine dogfish; Spikey dogfish verified

Appearance

Size class
Extra large verified
Max length (cm)
89.8 verified
Average length (cm)
76.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey sourced
Tail shape
Straight inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Mixed bottom sourced
Min depth (m)
29.0 verified
Max depth (m)
600.0 verified
Natural range
Asia: Argentina, Australia, Brazil, Chile, Juan Fernández, Desventuradas Is and others sourced
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Bears venomous spines or tissue; handle with great care. inferred

For anglers

Edibility
Commonly eaten inferred
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Venomous / poisonous verified
First aid
For a sting from a fin spine: rinse the wound, remove any visible spine fragments and immerse the part for 30-90 minutes in water as hot as can be tolerated (about 45 C) to break down the venom. The pain can be severe. For marked swelling, a retained spine or signs of infection seek medical care and check tetanus status. sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Squalus

More from the family Squalidae

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