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Sheepshead minnow (Cyprinodon variegatus) — Cyprinodontidae

Sheepshead minnow

Cyprinodon variegatus
LC · Least Concern

The Sheepshead minnow (Cyprinodon variegatus) is a fish that lives in both fresh and salt water of the family Cyprinodontidae that grows up to 9 cm.

Length
9 cm
Water
Euryhaline
Diet
Omnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Algae or seagrass meadow
Danger
Harmless
Range
Western Atlantic from the USA to Mexico, in shallow estuaries, salt marshes and lagoons; extremely euryhaline.
Edibility
Not eaten

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Description

The sheepshead minnow is a small, stocky pupfish of the family Cyprinodontidae reaching about 9 cm. The deep body has a blunt head and knob-like teeth in the mouth; breeding males turn steel-blue with a yellow tinge. The species is exceptionally tolerant: it survives temperatures and salinities lethal to most fish, from nearly fresh to extremely salty marsh water. It lives in shallow estuaries, salt marshes and lagoons along the western Atlantic coast from the USA to Mexico. As an omnivore it eats algae, detritus, small crustaceans and insect larvae. For its hardiness it is an important prey fish and mosquito controller and a much-used research animal.

Frequently asked questions

How do you recognise the Sheepshead minnow?

The Sheepshead minnow has a flattened, disc-shaped body, is mainly silver-grey and shows a vertical stripes pattern. Small, stocky toothcarp with a blunt head and knobbed teeth; exceptionally tolerant of extreme temperature and salinity.

Where does the Sheepshead minnow live?

The Sheepshead minnow lives in both fresh and salt water and is mostly found around algae or seagrass beds. Western Atlantic from the USA to Mexico, in shallow estuaries, salt marshes and lagoons; extremely euryhaline.

How big does the Sheepshead minnow get?

The Sheepshead minnow grows to a maximum of about 9 cm. On average the species is around 3 cm.

Is the Sheepshead minnow dangerous to humans?

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

Is the Sheepshead minnow edible?

The Sheepshead minnow is not usually eaten.

More photos

Sheepshead minnow (Cyprinodon variegatus) — Cyprinodontidae — 2
iNaturalist ((c) kary, some rights reserved (CC BY-NC))
Sheepshead minnow (Cyprinodon variegatus) — Cyprinodontidae — 3
iNaturalist ((c) rando_boyo, some rights reserved (CC BY-NC))
Sheepshead minnow (Cyprinodon variegatus) — Cyprinodontidae — 4
iNaturalist ((c) Austin Kaplan, some rights reserved (CC BY-NC))
Sheepshead minnow (Cyprinodon variegatus) — Cyprinodontidae — 5
kary (CC BY-NC 4.0) via GBIF — iNaturalist
Fin

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All data

Identification

English name
Sheepshead minnow verified
Scientific name
Cyprinodon variegatus
Family
Cyprinodontidae
Other names
Pursy minnow; Sheephead minnow; Sheepshead minnow; Sheepshead Minnow; Bahama sheepshead minnow verified

Appearance

Size class
Small verified
Max length (cm)
9.0 verified
Average length (cm)
3.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Silver / grey sourced
Pattern
Vertical bars sourced
Tail shape
Straight inferred
Mouth position
Superior (upward) inferred
Lips
Thick / fleshy inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Euryhaline verified
Substrate
Algae or seagrass meadow verified
Natural range
Western Atlantic from the USA to Mexico, in shallow estuaries, salt marshes and lagoons; extremely euryhaline. verified
Origin
Native verified

Behaviour & biology

Diet
Omnivore verified
Diet (detail)
Algae, detritus, small crustaceans and insect larvae sourced
Social behaviour
Schooling verified
Territorial
Yes verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
Yes verified
Seasonality
Spawns in the warm months; the male defends a territory, the eggs attach to the bottom. sourced
Special features
Small, stocky toothcarp with a blunt head and knobbed teeth; exceptionally tolerant of extreme temperature and salinity. sourced

For anglers

Edibility
Not eaten verified
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. 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 Cyprinodon

More from the family Cyprinodontidae

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