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longhorn cowfish

Lactoria cornuta (Linnaeus, 1758)

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.

Open encyclopedia reference

The longhorn cowfish (Lactoria cornuta), also called the horned boxfish, is a species of marine ray-finned fish belonging to the family Ostraciidae, the boxfish. This species is recognizable by its long horns that protrude from the front of its head, rather like those of a cow or bull. They are a resident of the Indo-Pacific region and can grow up to 50 cm (20 in) long.

Adults are reef fish, often solitary and territorial, and live around sand or rubble bottom up to a depth of 50 m (160 ft). They are omnivorous, feeding upon benthic algae, various microorganisms, and foraminiferans that it strains from sediments, sponges, polychaete worms and from sand flats. It also can eat mollusks, small crustaceans, and small fish - it's able to feed on benthic invertebrates by blowing jets of water into the sandy substrate. Longhorn cowfish protect the coral reefs they live in by being predators of the invertebrates that destroy the reefs. They are also important in the growth and creation of coral reefs for this same reason.

Wikipedia contributors, Longhorn cowfish; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T06:00:39.202846+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Lactoria cornuta (Linnaeus, 1758)
Name authority
(Linnaeus, 1758)
Common name
longhorn cowfish
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Order
Tetraodontiformes
Family
Ostraciidae
Genus
Lactoria
Extinction status
Not supplied by this source

Source habitat flags: Marine: yes · Freshwater: no · Terrestrial: no. These do not form a complete habitat description.

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. gigaclassActinopterygii
  8. superclassActinopteri
  9. classTeleostei
  10. orderTetraodontiformes
  11. suborderBalistoidei
  12. familyOstraciidae Rafinesque, 1810
  13. genusLactoria Jordan & Fowler, 1902
  14. speciesLactoria cornuta (Linnaeus, 1758)

Close classified relatives

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

SpeciesClassificationSource status
roundbelly cowfishLactoria diaphana (Bloch & Schneider, 1801)OstraciidaeChordataAccepted speciesExtinction status not supplied
thornback cowfishLactoria fornasini (Bianconi, 1846)OstraciidaeChordataAccepted speciesExtinction status not supplied
Lactoria paschae (Rendahl, 1921)OstraciidaeChordataAccepted speciesExtinction status not supplied

Browse 17 records assigned to Ostraciidae.

Names & synonyms

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

Recorded nameSource status
Ostracion cornutus Linnaeus, 1758 Linnaeus, 1758synonym
Lactoria cornutus (Linnaeus, 1758) (Linnaeus, 1758)synonym

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.marinespecies.org/aphia.php?p=taxdetails&id=219904 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. A suitable sourced image remains to be added.

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:3RSXX. Classification follows source parent identifiers. English common names may vary by region.