intermedius, Heniochus Steindachner [F.] 1893:150 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Classe v. 30 (no. 14) (for 18 May 1893); ref. 20494] Suez, Gulf of Suez, Egypt, Red Sea. Syntypes: NMW 60898 (3). Species illustrated and described in more detail in Steindachner 1893:222, Pl. 2 (fig. 2) [ref. 14536]. •Valid as Heniochus intermedius Steindachner 1893 -- (Burgess 1978:242 [ref. 700], Allen 1980:163 [ref. 22764], Dor 1984:177 [ref. 29757], Blum 1989:12 [ref. 37553], Goren & Dor 1994:48 [ref. 25356], Smith et al. 2003:302 [ref. 27125], Manilo & Bogorodsky 2003:S112 [ref. 27377], Fricke et al. 2007:91 [ref. 29533], Zenetos et al. 2010:412 [ref. 31201], Bogorodsky & Randall 2018:[16] 254 [ref. 36492], Golani & Fricke 2018:110 [ref. 36273], Bariche & Fricke 2020:126 [ref. 37515], Golani 2021:63 [ref. 38303], Kovačić et al. 2021:60 [ref. 39014], Heemstra & Heemstra 2022:466 [ref. 39746], Abd Rabou et al. 2024:128 [ref. 41250]). Current status: Valid as Heniochus intermedius Steindachner 1893. Chaetodontidae: Heniochinae. Distribution: Red Sea; northwestern Indian Ocean: Gulf of Aden; Mediterranean Sea (Red Sea immigrant). Habitat: marine.