Herring scad
species of fish

The herring scad (Alepes vari) (also known as the duskyfin crevalle and trevally scad), is a common species of tropical marine fish in the jack family Carangidae. The species inhabits the surface waters of coastal regions throughout the Indo-West Pacific region, feeding on a variety of crustaceans and small fishes. It is the largest fish of the scad genus Alepes, growing to a recorded length of 56 cm. The herring scad is identified among the genus Alepes by its more numerous and smaller scutes and the number of gill rakers on the first arch. It is of minor importance to fisheries throughout its range.
Taxonomy and naming
The herring scad is one of five extant species in the scad genus Alepes, a group of fish in the jack family, Carangidae. The Carangidae are part of the order Carangiformes.
The species was first scientifically described by the French naturalist Georges Cuvier in 1833 from a specimen now lost to science. He named the species Caranx vari, believing the fish was closely affiliated with the large jacks of that genus. The species was later transferred to the scad genus Alepes by Gushiken in 1983, and a specimen from Puducherry, India was designated to be the lectotype the following year by Smith-Vaniz.
This brief starts where responsible research should: with the source description of “Herring scad” as species of fish. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the science & nature register because the source frames it as species of fish. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Aug 11, 2026. The linked authority identifier is Q2199873. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1833 and 1983.
Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
- Current terminology
- Classification context
- Finding cited technical literature
Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
- Establish the record: confirm the title “Herring scad”, its source revision and the description used here.
- Expand the search: follow Herring scad primary sources, Herring scad archive and Herring research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Herring scad”?
- Which observation, specimen, dataset or publication supports the account?
- Is the terminology current, historical or disputed?
Search terms from this dossier
This entry incorporates text from “Herring scad” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.