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NATURAL HISTORY · CATALOGUE RECORD

Haig's Tuco-tuco

Ctenomys haigi Thomas, 1917

Source-backed taxonomic record

Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.

Photo of Haig's Tuco-tuco uploaded from iNaturalist.

Photo of Haig's Tuco-tuco uploaded from iNaturalist.

(c) Ariadna Tripaldi, some rights reserved (CC BY) · CC BY 4.0 · Image source

Provider-generated thumbnail requested at 800 pixels; no local editing Local WebP display rendition; resized without cropping.

Open encyclopedia reference

Haig's tuco-tuco (Ctenomys haigi), known regionally as the Patagonian tuco-tuco, is a hystricognath rodent. Like other tuco-tucos it is subterranean and thus not often observed, although the "tuc-tuc" call of the males can be heard near burrow sites, especially in the early morning. Like most species in the genus Ctenomys, C. haigi are solitary, with one adult per burrow.

Haig's tuco-tuco is native to Argentine Patagonia. Its primary habitat is the Patagonian steppe, but it is also found in the Low Monte and Valdivian temperate rain forest ecoregions.

Wikipedia contributors, Haig's tuco-tuco; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T05:16:29.086893+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Ctenomys haigi Thomas, 1917
Name authority
Thomas, 1917
Common name
Haig's Tuco-tuco
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Rodentia
Family
Ctenomyidae
Genus
Ctenomys
Extinction status
Recorded extant

Classification family tree

Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.

  1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
  2. kingdomAnimalia
  3. phylumChordata
  4. subphylumVertebrata
  5. infraphylumGnathostomata
  6. parvphylumOsteichthyes
  7. megaclassTetrapoda
  8. classMammalia Linnaeus, 1758
  9. subclassTheria Parker & Haswell, 1897
  10. infraclassEutheria Gill, 1872
  11. orderRodentia Bowdich, 1821
  12. suborderHystricomorpha Brandt, 1855
  13. infraorderHystricognathi Brandt, 1855
  14. familyCtenomyidae Lesson, 1842
  15. genusCtenomys Blainville, 1826
  16. speciesCtenomys haigi Thomas, 1917

Close classified relatives

These entries share the source’s genus, Ctenomys. They are not necessarily the closest relatives established by molecular evidence.

SpeciesClassificationSource status
Argentine Tuco-tucoCtenomys argentinus J. R. Contreras & Berry, 1982CtenomyidaeChordataAccepted speciesRecorded extant
Dune Tuco-tucoCtenomys australis Rusconi, 1934CtenomyidaeChordataAccepted speciesRecorded extant
Azara's Tuco-tucoCtenomys azarae Thomas, 1903CtenomyidaeChordataAccepted speciesRecorded extant
Bonetto's Tuco-tucoCtenomys bonettoi J. R. Contreras & Berry, 1982CtenomyidaeChordataAccepted speciesRecorded extant
Brazilian Tuco-tucoCtenomys brasiliensis Blainville, 1826CtenomyidaeChordataAccepted speciesRecorded extant
Chacoan Tuco-tucoCtenomys conoveri Osgood, 1946CtenomyidaeChordataAccepted speciesRecorded extant
Emilio's Tuco-tucoCtenomys emilianus Thomas & St. Leger, 1926CtenomyidaeChordataAccepted speciesRecorded extant
Famatina Tuco-tucoCtenomys famosus Thomas, 1920CtenomyidaeChordataAccepted speciesRecorded extant
Lago Blanco Tuco-tucoCtenomys fodax Thomas, 1910CtenomyidaeChordataAccepted speciesRecorded extant
Forest Tuco-tucoCtenomys frater Thomas, 1902CtenomyidaeChordataAccepted speciesRecorded extant
Long-tailed Tuco-tucoCtenomys fulvus Philippi, 1860CtenomyidaeChordataAccepted speciesRecorded extant
Mottled Tuco-tucoCtenomys latro Thomas, 1918CtenomyidaeChordataAccepted speciesRecorded extant

Browse 64 records assigned to Ctenomyidae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

Recorded nameSource status
Ctenomys haigi haigi Thomas, 1917 Thomas, 1917synonym
Ctenomys haigi lentulus Thomas, 1919 Thomas, 1919synonym

Documented distribution

Source distribution statements, not a complete range map. A listed locality is not necessarily a place of origin.

South America

Source literature & publication evidence

References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.

  1. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=584752 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references

Origins, evidence & remaining research

Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.

Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record.

Dataset citation & attribution

This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11

Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.

Stable key: col:32657. Classification follows source parent identifiers. English common names may vary by region.