Galeus longirostris Tachikawa & Taniuchi, 1987
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 longnose sawtail catshark (Galeus longirostris) is a little-known species of deepwater catshark, belonging to the family Pentanchidae, found off the northwestern Pacific islands of Amami Ōshima, Ogasawara, and Izu at depths of 350–550 m (1,150–1,800 ft). Reaching a length of 80 cm (31 in), it is characterized by a long flattened snout, a long space between the pelvic and anal fins, and a crest of enlarged dermal denticles along the dorsal caudal fin edge. Adults are plain dark gray above, while juveniles have a few faint dark saddles on the back and tail.
Wikipedia contributors, Longnose sawtail catshark; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:34:01.141241+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Galeus longirostris Tachikawa & Taniuchi, 1987
- Name authority
- Tachikawa & Taniuchi, 1987
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Elasmobranchii
- Order
- Carcharhiniformes
- Family
- Pentanchidae
- Genus
- Galeus
- 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
- infraclassSelachii
- superorderGaleomorphi
- orderCarcharhiniformes
- familyPentanchidae Smith, 1912
- genusGaleus Rafinesque, 1810
- speciesGaleus longirostris Tachikawa & Taniuchi, 1987
Close classified relatives
These entries share the source’s genus, Galeus. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| Atlantic sawtail catsharkGaleus atlanticus (Vaillant, 1888) | PentanchidaeChordata | Accepted speciesExtinction status not supplied |
| Galeus cadenati Springer, 1966 | PentanchidaeChordata | Accepted speciesExtinction status not supplied |
| Galeus schultzi Springer, 1979 | PentanchidaeChordata | Accepted speciesExtinction status not supplied |
| Galeus mincaronei Soto, 2001 | PentanchidaeChordata | Accepted speciesExtinction status not supplied |
| Galeus antillensis Springer, 1979 | PentanchidaeChordata | Accepted speciesExtinction status not supplied |
| marbled cat sharkGaleus arae (Nichols, 1927) | PentanchidaeChordata | Accepted speciesExtinction status not supplied |
| Galeus corriganae White, Mana & Naylor, 2016 | PentanchidaeChordata | Accepted speciesExtinction status not supplied |
| Galeus eastmani (Jordan & Snyder, 1904) | PentanchidaeChordata | Accepted speciesExtinction status not supplied |
| Galeus gracilis Compagno & Stevens, 1993 | PentanchidaeChordata | Accepted speciesExtinction status not supplied |
| black-mouthed dogfishGaleus melastomus Rafinesque, 1810 | PentanchidaeChordata | Accepted speciesExtinction status not supplied |
| Galeus murinus (Collett, 1904) | PentanchidaeChordata | Accepted speciesExtinction status not supplied |
| Galeus piperatus Springer & Wagner, 1966 | PentanchidaeChordata | 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.
- Tachikawa, H., & Taniuchi, T. (1987). Galeus longirostris, a new species of the sawtail catshark from Japan. Japanese Journal of Ichthyology, v. 33 (no. 4): 352–359. https://doi.org/10.1007/bf02904095 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:3F4Y6. Classification follows source parent identifiers. English common names may vary by region.