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Cyprinodon pachycephalus

Bighead Pupfish
Collection Details

Specimens

Photos

There are no photos available for this taxon yet.

Records

Taxonomic Hierarchy

Actinopterygii (Ray-finned Fishes) Cyprinodontiformes Cyprinodontidae (Pupfishes) Cyprinodon Cyprinodon pachycephalus (Bighead Pupfish)

Description

This species account was compiled from FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.) and processed using AI-assisted text extraction. It may contain errors in spelling, punctuation, or formatting. When citing, please reference the original source rather than this page. Learn more about our species accounts.

Characters

Body shape: Elongated.

Distribution

Central America: Río Conchos, Mexico.

Habitat Associations

Freshwater. benthopelagic.

Biology

Not a seasonal killifish. Is very difficult to maintain in aquarium (Ref. 27139).
Max length: 5.0 cm TL.
Reproductive mode: dioecism; fertilization: external; nonguarders; parental care: none.
IUCN Red List Status: Critically Endangered (CR), assessed 2018-09-28.

Commercial or Environmental Importance

Fisheries: commercial; aquarium: commercial.

References

Breder, C.M. and D.E. Rosen (1966) Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p.
Riehl, R. and H.A. Baensch (1991) Aquarien Atlas. Band. 1. Melle: Mergus, Verlag für Natur-und Heimtierkunde, Germany. 992 p.
Huber, J.H. (1996) Killi-Data 1996. Updated checklist of taxonomic names, collecting localities and bibliographic references of oviparous Cyprinodont fishes (Atherinomorpha, Pisces). Société Française d'Ichtyologie, Muséum National d'Histoire Naturelle, Paris, France, 399 p.
Jelks, H.L., S.J. Walsh, N.M. Burkhead, S. Contreras-Balderas, E. Díaz-Pardo, D.A. Hendrickson, J. Lyons, N.E. Mandrak, F. McCormick, J.S. Nelson, S.P. Platania, B.A. Porter, C.B. Renaud, J.J. Schmitter-Soto, E.B. Taylor and M.L. Warren Jr. (2008) Conservation status of imperiled North American freshwater and diadromous fishes. Fisheries 33(8):372-407.

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