Indian threadfin
species of fish

The Indian threadfin (Leptomelanosoma indicum) is a species of marine ray-finned fish from the family Polynemidae, the threadfins. It is a coastal species from south-east Asia which has been recorded in Papua New Guinea.
Description
The Indian threadfin is a large species with an elongated head and body. Its eye is roughly the same size as the length of its snout. The joint of the jaws is to the rear of the eyelid. It has two separated dorsal fins, the first dorsal fin contains 8 spines while the second dorsal fin has a single spine and 12 or 13 soft rays. The anal fin has 3 spines and 10 or 11 soft rays. The base of the anal-fin is shorter than that of the second dorsal-fin. The pectoral fin has 12 to 14rays and has a length equivalent to 19 to 22% of the standard length, its tip not reaching to the tip of the pelvic fin. The pectoral fin is situated well below the body's midline.
Begin with the source’s own compact description: “Indian threadfin” is species of fish. The dossier treats that line as a proposition to test through Indian, threadfin 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.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated May 21, 2026. The linked authority identifier is Q2452692. 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.
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This entry incorporates text from “Indian threadfin” 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.