dayi, Epinephelus Bleeker [P.] 1874:105 [Verhandelingen der Koninklijke Akademie van Wetenschappen, Afdeeling Natuurkunde (Amsterdam) v. 14 (art. 2); ref. 5110] Cochin, India. No types known. Based on Serranus sexfasciatus of Day 1865:2 (not Valenciennes). Not Epinephelus dayi Bleeker 1875. •Synonym of Epinephelus diacanthus (Valenciennes 1828) -- (Randall & Heemstra 1991:136 [ref. 19601], Heemstra & Randall 1993:140 [ref. 21042], Parenti & Randall 2020:66 [ref. 37354], Heemstra 2022:54 [ref. 39742]). Current status: Synonym of Epinephelus diacanthus (Valenciennes 1828). Epinephelidae. Habitat: marine.