“Morphological Characteristics of the Ryukyuan Paradise Fish Macropodus Opercularis (Perciformes: Belontiidae) ”. FishTaxa - Journal of Fish Taxonomy 18 (November 17, 2020): 1–5. Accessed April 3, 2026. https://fishtaxa.com/index.php/FishTaxa/article/view/77.