Hemitriakis japanica (Müller & Henle, 1839)

Open encyclopedia reference

Japanese topeshark (Hemitriakis japanica) is a species of houndshark in the family Triakidae, endemic to the north-west Pacific Ocean. It occurs from southern Japan to China, including the waters of the Republic of Korea, Democratic People's Republic of Korea, and Taiwan. The species is demersal on the continental shelf from inshore waters to a depth of about 100 m and is taken as bycatch in a variety of coastal and offshore fisheries. It has been assessed globally as Endangered under the IUCN Red List criteria A2d, based on suspected population reductions driven by intensive fishing pressure across its range and overharvesting for use in Chinese traditional medicine. Common names are Japanese topeshark, Requin-há Dochizame in French, Cazón Japonés in Spanish, and Eirakubuka in Japanese.

Wikipedia contributors, Japanese topeshark; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:46:57.919326+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name

Hemitriakis japanica (Müller & Henle, 1839)

Name authority

(Müller & Henle, 1839)

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Elasmobranchii

Order

Carcharhiniformes

Family

Triakidae

Genus

Hemitriakis

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.

1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
2. kingdomAnimalia
3. phylumChordata
4. subphylumVertebrata
5. infraphylumGnathostomata
6. parvphylumChondrichthyes
7. classElasmobranchii
8. subclassNeoselachii
9. infraclassSelachii
10. superorderGaleomorphi
11. orderCarcharhiniformes
12. familyTriakidae Gray, 1851
13. subfamilyGaleorhininae Gill, 1862
14. genusHemitriakis Herre, 1923
15. speciesHemitriakis japanica (Müller & Henle, 1839)

Close classified relatives

These entries share the source’s genus, Hemitriakis. They are not necessarily the closest relatives established by molecular evidence.

Browse 44 records assigned to Triakidae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

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.

1. https://www.marinespecies.org/aphia.php?p=taxdetails&id=281042 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:3KTLY. Classification follows source parent identifiers. English common names may vary by region.