Dichichthys bigus (Séret & Last, 2007)
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 beige catshark (Dichichthys bigus), or beige bristle shark, is a bristle shark of the family Dichichthyidae, The first recorded specimen was a female recorded off the coast of Queensland, Australia around Lord Howe Island. Its length was 72 cm.
Recently, a number of both male and female specimens (unpublished data) were captured in the waters off New Zealand, at the edge of the EEZ (exclusive economic zone). In 2024, the first footage of this shark was captured by the ROV SuBastian during Coral Sea surveys at Southern Small Detached Reef, Queensland. To date, very little is known about the ecology of this species. Scientists are currently studying the sensory systems of this catshark in order to reveal information about its ecology and ultimately behaviour. The reproduction of the beige catshark is oviparous.
Wikipedia contributors, Beige catshark; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T19:31:47.729941+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Dichichthys bigus (Séret & Last, 2007)
- Name authority
- (Séret & Last, 2007)
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Elasmobranchii
- Order
- Carcharhiniformes
- Family
- Dichichthyidae
- Genus
- Dichichthys
- Extinction status
- Not supplied by this source
Source habitat flags: Marine: no · Freshwater: yes · 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
- infraclassSelachii
- superorderGaleomorphi
- orderCarcharhiniformes
- familyDichichthyidae White, Stewart, O'Neill & Naylor, 2024
- genusDichichthys Chan, 1966
- speciesDichichthys bigus (Séret & Last, 2007)
Close classified relatives
These entries share the source’s genus, Dichichthys. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Dichichthys melanobranchus Chan, 1966 | DichichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Dichichthys albimarginatus (Séret & Last, 2007) | DichichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Dichichthys nigripalatum (Fahmi & Ebert, 2018) | DichichthyidaeChordata | Accepted speciesExtinction status not supplied |
| Dichichthys satoi White, Stewart, O'Neill & Naylor, 2024 | DichichthyidaeChordata | 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 |
|---|---|
| Parmaturus bigus Séret & Last, 2007 Séret & Last, 2007 | 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.
- https://www.marinespecies.org/aphia.php?p=taxdetails&id=1846223 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:N3J4Q. Classification follows source parent identifiers. English common names may vary by region.