bigtailed snailfish
Osteodiscus cascadiae Stein, 1978
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
Osteodiscus cascadiae, the bigtail snailfish, is a marine fish in the family Liparidae (snailfishes or seasnails). This species is known from the deep waters of the Northeast Pacific (British Columbia, Canada to at least Oregon, United States) where it occurs at depths of 1,900 to 3,000 metres (6,200 to 9,800 ft). It grows to length from 7.4 centimetres (2.9 in) SL (male/unsexed) to 8.5 centimetres (3.3 in) SL (female). This species is one of three known members of its genus. The species name cascadiae refers to the Cascadia Abyssal Plain, a location off Oregon where the fish has been found. A 2025 journal on the discovery of Careproctus colliculi noted that the fish showed genetic similarities.
Wikipedia contributors, Osteodiscus cascadiae; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T07:40:33.339940+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Osteodiscus cascadiae Stein, 1978
- Name authority
- Stein, 1978
- Common name
- bigtailed snailfish
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Teleostei
- Order
- Perciformes
- Family
- Liparidae
- Genus
- Osteodiscus
- 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
- orderPerciformes
- suborderCottoidei
- familyLiparidae Gill, 1861
- genusOsteodiscus Stein, 1978
- speciesOsteodiscus cascadiae Stein, 1978
Close classified relatives
These entries share the source’s genus, Osteodiscus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Osteodiscus andriashevi Pitruk & Fedorov, 1990 | LiparidaeChordata | Accepted speciesExtinction status not supplied |
| Osteodiscus rhepostomias Stein, 2012 | LiparidaeChordata | Accepted speciesExtinction status not supplied |
| Osteodiscus lindbergi Chernova & Thiel, 2025 | LiparidaeChordata | 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.
- Stein, D. L. (1978). A review of the deepwater Liparidae (Pisces) from the coast of Oregon and adjacent waters. Occasional Papers California Academy of Sciences, 127: 1–55. 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:6TBDK. Classification follows source parent identifiers. English common names may vary by region.