Glaucostegus thouin (Anonymous [Lacepède], 1798)

Open encyclopedia reference

The clubnose guitarfish (Glaucostegus thouin) is a critically endangered species of ray in the Glaucostegidae family. It is found from shallow coastal waters to a depth of 60 m (200 ft) in the Indo-Pacific, ranging from India to Southeast Asia, and also in the Red Sea. There are also old unconfirmed records from the Mediterranean and Suriname.

It reaches up to 3 m (9.8 ft) in length, but typically is less than 2.5 m (8.2 ft).It is pale yellowish or brownish with a pale snout. It has an unusual club-like tip of the snout, which separates it from other members of the genus Glaucostegus.

Wikipedia contributors, Clubnose guitarfish; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:36:57.064110+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name

Glaucostegus thouin (Anonymous [Lacepède], 1798)

Name authority

(Anonymous [Lacepède], 1798)

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Elasmobranchii

Order

Rhinopristiformes

Family

Glaucostegidae

Genus

Glaucostegus

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. parvphylumChondrichthyes
7. classElasmobranchii
8. subclassNeoselachii
9. infraclassBatoidea
10. orderRhinopristiformes
11. familyGlaucostegidae Last, Séret & Naylor, 2016
12. genusGlaucostegus Bonaparte, 1846
13. speciesGlaucostegus thouin (Anonymous [Lacepède], 1798)

Close classified relatives

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

Browse 8 records assigned to Glaucostegidae.

Names & synonyms

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

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=712954 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:3G6MY. Classification follows source parent identifiers. English common names may vary by region.