twinpored eel
Xenomystax atrarius Gilbert, 1891
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
Xenomystax atrarius, the deepwater conger or twinpored eel, is an eel in the family Congridae (conger/garden eels). It was described by Charles Henry Gilbert in 1891. It is a marine, deep water-dwelling eel which is known from southern Canada to Chile, in the eastern Pacific Ocean. It dwells at a depth range of 152–1,050 metres (499–3,445 ft). Males can reach a maximum total length of 100 centimetres (39 in).
Wikipedia contributors, Xenomystax atrarius; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T03:34:01.709370+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Xenomystax atrarius Gilbert, 1891
- Name authority
- Gilbert, 1891
- Common name
- twinpored eel
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Anguilliformes
- Family
- Congridae
- Genus
- Xenomystax
- 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
- orderAnguilliformes
- familyCongridae Kaup, 1856
- subfamilyCongrinae Kaup, 1856
- genusXenomystax Gilbert, 1891
- speciesXenomystax atrarius Gilbert, 1891
Close classified relatives
These entries share the source’s genus, Xenomystax. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Xenomystax bidentatus (Reid, 1940) | CongridaeChordata | Accepted speciesExtinction status not supplied |
| Xenomystax trucidans Alcock, 1894 | CongridaeChordata | 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.
- Gilbert, C. H. (1891). Descriptions of apodal fishes from the tropical Pacific. In: Scientific Results of Explorations by the U. S. Fish Commission Steamer Albatross. Proceedings of the United States National Museu, v. 14 (no. 856): 347–352. https://doi.org/10.5479/si.00963801.14-856.347 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:7FVV2. Classification follows source parent identifiers. English common names may vary by region.