isus, Apogon Randall [J. E.] & Böhlke [J. E.] 1981:136, Pl. 1 (fig. D) [Proceedings of the Academy of Natural Sciences of Philadelphia v. 133; ref. 8562] Reef front with caves, 500 meters north of entrance to Port Sudan harbor, Sudan, Red Sea, depth 6-20 meters. Holotype: BPBM 17895. Paratypes: ANSP 144106 (4); BPBM 18165 (2), 27463 (2); CAS 46538 (1); HUJ 8472 (2); MNHN 1977-0455 (1); ROM 36591 (2); SMF 15699 (1); USNM 222156 (6, 1 c&s). Type catalog: Böhlke 1984:20 [ref. 13621], Bauchot & Desoutter 1987:60 [ref. 12478], Golani 2006:26 [ref. 28840]. •Valid as Apogon isus Randall & Böhlke 1981 -- (Goren & Dor 1994:30 [ref. 25356], Fraser 1998:990 [ref. 23602], Gon & Randall 2003:17 [ref. 26750]). •Valid as Zapogon isus (Randall & Böhlke 1981) -- (Mabuchi et al. 2014:198 [ref. 33426], Bogorodsky & Randall 2018:[16] 254 [ref. 36492], Golani & Fricke 2018:79 [ref. 36273], Kuiter & Kozawa 2019:40 [ref. 36965], Fraser et al. 2022:180 [ref. 39752]). Current status: Valid as Zapogon isus (Randall & Böhlke 1981). Apogonidae: Apogoninae. Distribution: Red Sea; northwestern Indian Ocean: Gulf of Aden. Habitat: marine.