delagoensis, Eleotris Barnard [K. H.] 1927:70 [Annals and Magazine of Natural History (Series 9) v. 20 (no. 115) (art. 8); ref. 193] Delagoa Bay, Mozambique, western Indian Ocean. Holotype (unique): SAM 15548. Also appeared as new in Barnard 1927:811 [ref. 194]. •Synonym of Prionobutis koilomatodon (Bleeker 1849) -- (Maugé 1986:397 [ref. 6218], Hoese 1986:810 [ref. 5670]). •Synonym of Butis koilomatodon (Bleeker 1849) -- (Miller & Wongrat 1990:954 [ref. 19381], Kottelat 2013:390 [ref. 32989], Parenti 2021:21 [ref. 38603], Larson 2022:182 [ref. 39971]). •Valid as Butis delagoensis (Barnard 1927) -- (Keith & Mennesson 2023:451 [ref. 40541]). Current status: Valid as Butis delagoensis (Barnard 1927). Eleotridae: Butinae. Distribution: Western Indian Ocean: Mozambique, Madagascar to India. Habitat: freshwater, brackish, marine.