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California hagfish (Eptatretus stoutii) — Myxinidae

California hagfish

Eptatretus stoutii
Family: Myxinidae
DD · Data Deficient

The California hagfish (Eptatretus stoutii) is a saltwater fish of the family Myxinidae that grows up to 64 cm.

Length
63.5 cm
Water
Saltwater
Depth
16.0–966.0 m
Diet
Carnivore
Behaviour
Small groups
Body shape
Snake-like
Substrate
Sand / mud bottom
Danger
Harmless
Range
Silty and clay bottoms of the eastern Pacific.
Edibility
Not eaten

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Description

The Pacific hagfish (Eptatretus stoutii) is a jawless, eel-like marine fish of the family Myxinidae, one of the oldest living vertebrates. The species has a pinkish-grey, scaleless, snake-like body with barbels around the mouth opening and reaches about 63 cm. It lives on fine silt and clay bottoms of the deeper sea floor. Most famous is its defence: when disturbed it secretes enormous amounts of slime in a short time, thickening the water. As a scavenger it enters dead and dying fishes through the mouth or anus and eats the viscera and muscles. Through this behaviour it can greatly reduce the catch of fixed fishing gear.

Frequently asked questions

How do you recognise the California hagfish?

The California hagfish has a snake-like body, is mainly pink-purple and shows a plain pattern. Jawless primitive fish that secretes large amounts of mucus when disturbed; scavenger in carcasses.

Where does the California hagfish live?

The California hagfish lives in the sea (marine waters) and is mostly found around sand or mud bottom. Silty and clay bottoms of the eastern Pacific.

How big does the California hagfish get?

The California hagfish grows to a maximum of about 64 cm.

Is the California hagfish dangerous to humans?

No, the California hagfish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the California hagfish edible?

The California hagfish is not usually eaten.

More photos

California hagfish (Eptatretus stoutii) — Myxinidae — 2
Teri Martin (CC BY 4.0) via GBIF — CMN
California hagfish (Eptatretus stoutii) — Myxinidae — 3
Florida Museum of Natural History Ichthyology (CC BY-NC 4.0) via GBIF — UF
California hagfish (Eptatretus stoutii) — Myxinidae — 4
Wikimedia Commons — Stan Shebs (CC BY-SA 3.0)
California hagfish (Eptatretus stoutii) — Myxinidae — 5
iNaturalist ((c) tiawatts, some rights reserved (CC BY-NC))
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All data

Identification

English name
California hagfish verified
Scientific name
Eptatretus stoutii
Family
Myxinidae
Other names
Hag-fish; Lamperina; Pacific hagfish verified

Appearance

Size class
Large verified
Max length (cm)
63.5 verified
Body shape
Snake-like sourced
Dominant colour
Pink / purple inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
Yes sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
16.0 verified
Max depth (m)
966.0 verified
Natural range
Silty and clay bottoms of the eastern Pacific. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Carrion and the entrails of dead and dying fishes sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Jawless primitive fish that secretes large amounts of mucus when disturbed; scavenger in carcasses. sourced

For anglers

Edibility
Not eaten sourced
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
Harmless sourced
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

Same genus Eptatretus

More from the family Myxinidae

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