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Aquatic rat

species of mammal

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 16, 2026
Entity authorityQ1282226
Source-derived summary

The aquatic rat, Ecuador fish-eating rat, fish-eating rat or Ecuadoran ichthyomyine (Anotomys leander) is a South American species of semiaquatic rodent in the family Cricetidae. It is the only species in the genus Anotomys. This species is currently considered endangered. It is thought to be nocturnal and feeds on aquatic arthropods and insects. It is found in small ranges along the Andes.

Taxonomy

Anotomys leander is the only member of its genus, which belongs the tribe Ichthyomyini, subfamily Sigmodontinae and family Cricetidae. The ichthyomyines are semiaquatic carnivorous rodents that are found in the Americas from Mexico to Peru.

Habitat

A. leander has a very small range, the smallest range of the ichthyomyines. Very few specimens have been captured so the full extent of its habitat and range is not completely known; the range is estimated at 40 km2 (15 mi2). The species is found in northern Ecuador along the Andes mountains; however, it has also been found at a single locality in Colombia.

Editorial summary

This brief starts where responsible research should: with the source description of “Aquatic rat” as species of mammal. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewUseful for establishing the present vocabulary of the subject while preserving a route back to the evidence on which that vocabulary rests. The current 163-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. The account is most persuasive where Aquatic, species and mammal can be independently traced.
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Why this record matters

The subject matters to the science & nature register because the source frames it as species of mammal. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Aug 16, 2026. The linked authority identifier is Q1282226. None of the 0 selected statements returned an explicit reference.

Critical limits

A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

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  2. Expand the search: follow Aquatic rat primary sources, Aquatic rat archive and Aquatic research across catalogues and specialist indexes.
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Source & attribution

This entry incorporates text from Aquatic rat” 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.