Bony fish · Cyprinodontiformes · Cyprinodontidae

Devil's Hole Pupfish

Cyprinodon diabolis

Critically Endangered

It faces an extremely high risk of imminent extinction in the wild. See full glossary

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

Lifespan

1 years

Diet

Omnivore

Combines animal and plant food depending on availability.

Activity

Diurnal

Active mainly during the day.

Sighting difficulty

Very hard

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 & biology

Skeleton type
Vertebrate - internal bony skeleton (bony fish)
Habitat & 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 watch 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.

How to help

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

It's documented in 1 real protected area — part of 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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