Acheilognathus rhombeus
species of fish

Acheilognathus rhombeus is a temperate freshwater fish belonging to the family Acheilognathidae, the bitterlings. It originates in Japan and the Korean Peninsula. It was originally described as Capoeta rhombea by Temminck & Schlegel in 1846. It is the type species for the genus Acheilognathus.
When spawning, the females deposit their eggs inside bivalves, where they hatch and the young remain until they can swim.
References
Froese, Rainer; Pauly, Daniel (eds.). "Acheilognathus rhombeus". FishBase. February 2007 version.
Begin with the source’s own compact description: “Acheilognathus rhombeus” is species of fish. The dossier treats that line as a proposition to test through Acheilognathus, rhombeus and species, not as a finished interpretation.
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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 Q653066. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1846 and 2007.
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This entry incorporates text from “Acheilognathus rhombeus” 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.