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smoothbelly sardinella

Amblygaster leiogaster (Valenciennes, 1847)

Source-backed taxonomic record

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

Amblygaster leiogaster, the smoothbelly sardinella, also known as blue sardine, blue sprat, bluebait, is a reef-associated marine species of sardinella in the herring family Clupeidae. It is one of the three species of genus Amblygaster. It is found in the marine waters along Indo-West Pacific regions south towards western Australia. The fish has 13 to 21 dorsal soft rays and 12 to 23 anal soft rays. It grows up to a maximum length of 23 cm. The flank is gold in fresh fish but becomes black while preservation. Belly is more rounded and scutes are not prominent. It is rather closely resemble Amblygaster clupeoides, but the latter has very few lower gill rakers than smoothbelly sardinella. The fish feeds on minute organisms like zooplankton.

Wikipedia contributors, Amblygaster leiogaster; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T07:56:29.287407+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name
Amblygaster leiogaster (Valenciennes, 1847)
Name authority
(Valenciennes, 1847)
Common name
smoothbelly sardinella
Rank
species
Accepted status
accepted
Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Order
Clupeiformes
Family
Dorosomatidae
Genus
Amblygaster
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. parvphylumOsteichthyes
  7. gigaclassActinopterygii
  8. superclassActinopteri
  9. classTeleostei
  10. orderClupeiformes
  11. suborderClupeoidei Bleeker, 1859
  12. familyDorosomatidae Gill, 1861
  13. genusAmblygaster Bleeker, 1849
  14. speciesAmblygaster leiogaster (Valenciennes, 1847)

Close classified relatives

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

SpeciesClassificationSource status
spotted sardinellaAmblygaster sirm (Walbaum, 1792)DorosomatidaeChordataAccepted speciesExtinction status not supplied
Amblygaster clupeoides Bleeker, 1849DorosomatidaeChordataAccepted speciesExtinction status not supplied

Browse 84 records assigned to Dorosomatidae.

Names & synonyms

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

Recorded nameSource status
Sardinella leiogaster Valenciennes, 1847 Valenciennes, 1847synonym
Amblyogaster leiogaster (Valenciennes, 1847) (Valenciennes, 1847)synonym
Clupea leiogaster (Valenciennes, 1847) (Valenciennes, 1847)synonym
Clupea okinawensis Kishinouye, 1908 Kishinouye, 1908synonym

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=217440 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:CLR8. Classification follows source parent identifiers. English common names may vary by region.