Halichoeres chrysus
species of fish

Halichoeres chrysus, commonly called the canary wrasse, golden wrasse or yellow wrasse, is a wrasse native to the central Indo-Pacific area.
Description
Halichoeres chrysus is a small fish that can reach a maximum length of 12 cm. It has a thin, elongate body with a terminal mouth. Body coloration is bright yellow with a few variations according to age. Juveniles and immature females have two black spots rimmed with white or light yellow on the dorsal fin and a third one between the caudal peduncle and the caudal fin; in contrast, matures females or young males only show the two black spots on the dorsal fin. Mature males display only the first black spot in the front of the dorsal fin, a lighter-colored spot just behind the eye and irregular greenish to pinkish bars on the face.
Distribution and habitat
Halichoeres chrysus is quite widespread throughout the tropical and subtropical waters of the central Indo-Pacific, in an area bordered by the Christmas Islands and Indonesia, Japan, New South Wales and the Rowley Shoals, and Tonga and the Solomon Islands. This wrasse occurs on outside reef slopes, in rubble and sandy areas from surface down to a depth of 30 m.
Biology
Halichoeres chrysus lives in small groups. It is a benthic predator that feeds mainly on small marine invertebrates such as crustaceans, molluscs, worms and echinoderms captured on or in the substrate.
Begin with the source’s own compact description: “Halichoeres chrysus” is species of fish. The dossier treats that line as a proposition to test through Halichoeres, chrysus and species, not as a finished interpretation.
Why this record matters
The phrase “species of fish” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
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 Dec 14, 2025. The linked authority identifier is Q2737759. None of the 0 selected statements returned an explicit reference.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. 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 “Halichoeres chrysus”, its source revision and the description used here.
- Expand the search: follow Halichoeres chrysus primary sources, Halichoeres chrysus archive and Halichoeres 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 “Halichoeres chrysus”?
- Is the terminology current, historical or disputed?
- Which observation, specimen, dataset or publication supports the account?
Search terms from this dossier
This entry incorporates text from “Halichoeres chrysus” 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.