Home · Carangidae · Cottonmouth jack
Cottonmouth jack (Uraspis secunda) — Carangidae

Cottonmouth jack

Uraspis secunda
Family: Carangidae
LC · Least Concern

The Cottonmouth jack (Uraspis secunda) is a saltwater fish of the family Carangidae that grows up to 50 cm.

Length
50 cm
Water
Saltwater
Depth
1.0–50.0 m
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Open water
Danger
Harmless
Edibility
Commonly eaten

Description

The cottonmouth jack is a sturdy jack of the family Carangidae reaching about 50 cm. The laterally compressed body is dark silvery-grey; young fish bear several dark cross-bands. Characteristic is the strikingly white mouth and tongue cavity, from which the name 'cottonmouth' derives. Along the tail base runs a row of bony scutes, typical of the family. The species lives pelagically above the outer edge of the continental shelf and near deeper reefs in warm seas worldwide. In loose schools it hunts small fish, shrimps and crustaceans. It is caught irregularly and has tasty flesh.

Frequently asked questions

How do you recognise the Cottonmouth jack?

The Cottonmouth jack has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern.

Where does the Cottonmouth jack live?

The Cottonmouth jack lives in the sea (marine waters) and is mostly found around open water.

How big does the Cottonmouth jack get?

The Cottonmouth jack grows to a maximum of about 50 cm. On average the species is around 40 cm.

Is the Cottonmouth jack dangerous to humans?

No, the Cottonmouth jack is harmless to humans.

Is the Cottonmouth jack edible?

Yes, the Cottonmouth jack is commonly eaten.

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All data

Identification

Dutch name
Witmondhorsmakreel inferred
English name
Cottonmouth jack verified
Scientific name
Uraspis secunda
Family
Carangidae
Other names
Blacktip trevally; Cottonmouth jack; Cottonmouth Jack verified

Appearance

Size class
Large verified
Max length (cm)
50.0 verified
Average length (cm)
40.0 verified
Body shape
Torpedo-shaped verified
Dominant colour
Silver / grey sourced
Pattern
Plain sourced
Tail shape
Crescent (lunate) inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No verified
Dorsal fins
Two separate sourced
Dorsal spines
Yes verified

Habitat & distribution

Water type
Saltwater verified
Substrate
Open water verified
Min depth (m)
1.0 verified
Max depth (m)
50.0 verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Social behaviour
Schooling verified
Territorial
No verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified

For anglers

Edibility
Commonly eaten verified
Fishing method
Slepend vissen of werpen met kunstaas boven dieper rif; een hard vechtende, zij het ongewone vangst sourced
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

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

Same genus Uraspis

More from the family Carangidae

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