Carbonera pupfish
species of fish
The Carbonera pupfish (Cyprinodon fontinalis), also known as the Perrito de carbonera, is a small, endangered species of pupfish in the family Cyprinodontidae. It is endemic to springs and associated waters at Bolsón de los Muertos in northwestern Chihuahua, Mexico. It was last rated by the IUCN in 1996 where considered endangered, but most subpopulations now appear to be extirpated, while a few are extinct in the wild (still survive in captivity). In 2012, it only survived in the wild in a single spring (having once occurred in nine), which also was the last remaining habitat for the largemouth shiner (Cyprinella bocagrande) and the dwarf crayfish Cambarellus chihuahuae. As this single spring was declining, it was decided to move some individuals of all three species to a nearby refuge in 2014 as a safeguard.
This brief starts where responsible research should: with the source description of “Carbonera pupfish” as species of fish. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the science & nature register because the source frames it as species of fish. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Jul 27, 2026. The linked authority identifier is Q305804. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1996, 2012 and 2014.
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This entry incorporates text from “Carbonera pupfish” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.