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Wrymouth (Cryptacanthodes maculatus) — Cryptacanthodidae

Wrymouth

Cryptacanthodes maculatus
LC · Least Concern

The Wrymouth (Cryptacanthodes maculatus) is a saltwater fish of the family Cryptacanthodidae that grows up to 97 cm.

Length
97 cm
Water
Saltwater
Depth
1.0–110.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Northwest Atlantic along the east coast of North America, in muddy bottoms of cold coastal water.
Edibility
Not eaten

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Description

The wrymouth is an elongate, eel-like bottom fish of the family Cryptacanthodidae reaching about 97 cm. The naked, laterally compressed body has a continuous dorsal fin, small high-set eyes and an obliquely upturned mouth - hence the name wrymouth. The species lives in muddy bottoms of cold coastal water along the east coast of North America, where it digs extensive burrow systems and stays almost always hidden. From the burrows it ambushes small crustaceans, molluscs and worms. Because of its hidden, burrowing lifestyle it is only rarely seen and has no fishery value, though it sometimes comes up as bycatch.

Frequently asked questions

How do you recognise the Wrymouth?

The Wrymouth has an elongate, eel-like body, is mainly brown and shows a spots pattern. Elongate, eel-like bottom fish with an obliquely upturned mouth and small eyes; digs extensive burrow systems in the mud.

Where does the Wrymouth live?

The Wrymouth lives in the sea (marine waters) and is mostly found around sand or mud bottom. Northwest Atlantic along the east coast of North America, in muddy bottoms of cold coastal water.

How big does the Wrymouth get?

The Wrymouth grows to a maximum of about 97 cm.

Is the Wrymouth dangerous to humans?

No, the Wrymouth is harmless to humans. None required: this species is harmless to humans.

Is the Wrymouth edible?

The Wrymouth is not usually eaten.

More photos

Wrymouth (Cryptacanthodes maculatus) — Cryptacanthodidae — 2
iNaturalist ((c) Joe Kunkel, some rights reserved (CC BY-NC))
Wrymouth (Cryptacanthodes maculatus) — Cryptacanthodidae — 3
Wikimedia Commons — NOAA (Public domain)
Wrymouth (Cryptacanthodes maculatus) — Cryptacanthodidae — 4
iNaturalist ((c) David Remsen, some rights reserved (CC BY-NC))
Wrymouth (Cryptacanthodes maculatus) — Cryptacanthodidae — 5
iNaturalist ((c) atincrab, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Wrymouth verified
Scientific name
Cryptacanthodes maculatus
Family
Cryptacanthodidae
Other names
Congo eel; Ghostfish; Wrymouth; Bastard cusk verified

Appearance

Size class
Extra large verified
Max length (cm)
97.0 verified
Body shape
Elongated (eel-like) verified
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Rounded inferred
Mouth position
Superior (upward) inferred
Lips
Thick / fleshy inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
Yes verified

Habitat & distribution

Water type
Saltwater verified
Substrate
Sand / mud bottom verified
Min depth (m)
1.0 verified
Max depth (m)
110.0 verified
Natural range
Northwest Atlantic along the east coast of North America, in muddy bottoms of cold coastal water. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Small crustaceans, molluscs and worms from the bottom sourced
Social behaviour
Solitary verified
Territorial
Yes verified
Activity
Nocturnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
Seasonality
Lives almost always in self-dug mud burrows; rarely emerges. sourced
Special features
Elongate, eel-like bottom fish with an obliquely upturned mouth and small eyes; digs extensive burrow systems in the mud. sourced

For anglers

Edibility
Not eaten verified
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 verified
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Cryptacanthodes

More from the family Cryptacanthodidae

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