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  3. Devil's Hole Pupfish

Bony fish · Cyprinodontiformes · Cyprinodontidae

Devil's Hole Pupfish

Cyprinodon diabolis

Critically Endangered

At extremely high risk of imminent extinction in the wild.

Spotted something wrong?

The Devils Hole pupfish is a fish of the family Cyprinodontidae, in the order Cyprinodontiformes, endemic to Devils Hole, a small aquifer in the state of Nevada. According to the IUCN Red List it is a critically endangered species, with a population of some 30 individuals.

Size

up to 3.4 cm

Life expectancy

1 year

Diet

Omnivore

Combines animal and plant food depending on availability.

Activity

Diurnal

Active mainly during the day.

Sighting difficulty

Very hard

Freshwater
2countries1parks

Fun facts

  • The entire species lives in a single pool: it has one of the smallest ranges of any vertebrate in the world.
  • It has no pelvic fins, a feature that sets it apart from the other pupfish of the genus Cyprinodon.
  • It breeds all year round thanks to the cave's constant temperature, peaking in spring and autumn.
  • Individuals live only 10 to 14 months.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (bony fish)
Habitat and environment
A single pool in a limestone cave, Devils Hole, in Ash Meadows, Nevada; the entire population feeds and spawns on a submerged shelf of about 20 m², at a constant 33-34 °C
Size at birth
About 6.5 mm
Sexual maturity
Between 8 and 10 weeks old
Gestation / incubation
The eggs hatch in about seven days

Sources consulted: https://es.wikipedia.org/wiki/Cyprinodon_diabolis

Where to find it

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The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented.

Related species

Other species in the catalogue with the most in common with Devil's Hole Pupfish — same habitat, park, country, tags or family.

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How to help

The devil's hole pupfish is classified as critically endangered. Organisations such as the IUCN, WWF and the Wildlife Conservation Society work specifically on its conservation and that of its habitat; looking into their programmes is a good starting point if you want to get involved.

It's documented in 1 protected area — one reason why protecting these places matters for its conservation.

Keep exploring

Based on what we already know about devil's hole pupfish.

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CountriesUnited States
ParksDeath ValleyUnited States
TagsOmnivore
Omnivore
Diurnal
Critically Endangered
Fish
Freshwater
United States
Mexico