velvet belly

Open encyclopedia reference

The velvet belly lanternshark (or simply velvet belly) (Etmopterus spinax) is a species of dogfish shark in the family Etmopteridae. One of the most common deepwater sharks in the northeastern Atlantic Ocean, the velvet belly is found from Iceland and Norway to Gabon and South Africa at a depth of 20–2,490 m (66–8,169 ft). A small shark generally no more than 45 cm (18 in) long, the velvet belly is so named because its black underside is abruptly distinct from the brown coloration on the rest of its body. The body of this species is fairly stout, with a moderately long snout and tail, and very small gill slits. Like other lanternsharks, the velvet belly is bioluminescent, with light-emitting photophores forming a species-specific pattern over its flanks and abdomen. The ventral photophores are thought to function in counter-illumination, which camouflages the shark against predators and prey. The bioluminescent flank markings may play a role in intraspecific communication. Young velvet bellies feed mainly on krill and small bony fish, transitioning to squid and shrimp as they grow larger.

Wikipedia contributors, Velvet belly lanternshark; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T02:59:52.818834+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name

Etmopterus spinax (Linnaeus, 1758)

Name authority

(Linnaeus, 1758)

Common name

velvet belly

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Elasmobranchii

Order

Squaliformes

Family

Etmopteridae

Genus

Etmopterus

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. superorderSqualomorphi
11. orderSqualiformes Compagno, 1973
12. familyEtmopteridae Fowler, 1934
13. genusEtmopterus Rafinesque, 1810
14. speciesEtmopterus spinax (Linnaeus, 1758)

Close classified relatives

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

Browse 48 records assigned to Etmopteridae.

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=105913 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.

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:6GSVD. Classification follows source parent identifiers. English common names may vary by region.