Bighead portholefish
Margrethia obtusirostra Jespersen & Tåning, 1919
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
Margrethia obtusirostra, the Bighead portholefish, is a bristlemouth of the family Gonostomatidae, found in the tropical and subtropical Indo-Pacific and Atlantic oceans, at depths of between 100 and 600 m. Its length is between 5 and 8 cm.
Wikipedia contributors, Margrethia obtusirostra; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T07:46:27.174691+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Margrethia obtusirostra Jespersen & Tåning, 1919
- Name authority
- Jespersen & Tåning, 1919
- Common name
- Bighead portholefish
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Stomiiformes
- Family
- Gonostomatidae
- Genus
- Margrethia
- 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
- parvphylumOsteichthyes
- gigaclassActinopterygii
- superclassActinopteri
- classTeleostei
- orderStomiiformes
- familyGonostomatidae Cocco, 1838
- genusMargrethia Jespersen & Tåning, 1919
- speciesMargrethia obtusirostra Jespersen & Tåning, 1919
Close classified relatives
These entries share the source’s genus, Margrethia. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Margrethia glareosa (Schwarzhans, 1980) | GonostomatidaeChordata | Accepted speciesRecorded extinct |
| Margrethia valentinae Parin, 1982 | GonostomatidaeChordata | Accepted speciesExtinction status not supplied |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Margrethia disjuncta Myers, 1934 Myers, 1934 | synonym |
| Margrethia obtusirostre Jespersen & Tåning, 1919 Jespersen & Tåning, 1919 | synonym |
| Snellius boschmai Koumans, 1953 Koumans, 1953 | 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.
- Jespersen, P.; Tåning A. V. (1919). Some Mediterranean and Atlantic Sternoptychidae. Preliminary note. Videnskabelige Meddelelser Fra Dansk Naturhistorisk Forening, Kjøbenhavn, v. 70: 215–226, Pl. 17. 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:3Y63Y. Classification follows source parent identifiers. English common names may vary by region.