Glaucostegus younholeei Habib & Islam, 2001
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
Glaucostegus younholeei, the Bangladeshi guitarfish, is a type of guitarfish of the family Glaucostegidae found in the northern Bay of Bengal, Bangladesh. This species is recorded from 13 specimens discovered in a fish landing center in Cox's Bazar. It is currently witnessing a population decline of more than 80 percent due to high exploitation rate.
Wikipedia contributors, Glaucostegus younholeei; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:37:04.918354+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Glaucostegus younholeei Habib & Islam, 2001
- Name authority
- Habib & Islam, 2001
- 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.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumChondrichthyes
- classElasmobranchii
- subclassNeoselachii
- infraclassBatoidea
- orderRhinopristiformes
- familyGlaucostegidae Last, Séret & Naylor, 2016
- genusGlaucostegus Bonaparte, 1846
- speciesGlaucostegus younholeei Habib & Islam, 2001
Close classified relatives
These entries share the source’s genus, Glaucostegus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Granulated guitarfishGlaucostegus granulatus (Cuvier, 1829) | GlaucostegidaeChordata | Accepted speciesExtinction status not supplied |
| Glaucostegus halavi (Forsskål, 1775) | GlaucostegidaeChordata | Accepted speciesExtinction status not supplied |
| Glaucostegus cemiculus (Geoffroy Saint-Hilaire, 1817) | GlaucostegidaeChordata | Accepted speciesExtinction status not supplied |
| Glaucostegus microphthalmus (Teng, 1959) | GlaucostegidaeChordata | Accepted speciesExtinction status not supplied |
| Glaucostegus obtusus (Müller & Henle, 1841) | GlaucostegidaeChordata | Accepted speciesExtinction status not supplied |
| Glaucostegus thouin (Anonymous [Lacepède], 1798) | GlaucostegidaeChordata | Accepted speciesExtinction status not supplied |
| Glaucostegus typus (Anonymous [Bennett], 1830) | GlaucostegidaeChordata | Accepted speciesExtinction status not supplied |
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.
- Habib, K. A., & Islam, M. J. (2021). Description of a new species of giant guitarfish, Glaucostegus younholeei sp nov. (Rhinopristiformes: Glaucostegidae) from the northern Bay of Bengal Bangladesh. Zenodo. https://doi.org/10.5281/zenodo.5043836 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:D52SY. Classification follows source parent identifiers. English common names may vary by region.