simplex, Eustomias Regan [C. T.] & Trewavas [E.] 1930:87, Figs. 67b [Danish Dana Expedition 1920-22 in the North Atlantic and the Gulf of Panama, Oceanographical Reports. v. 2 (no. 6); ref. 3681] North Atlantic. Syntypes: (3) BMNH 1929.7.6.108 (1) Dana station 1043 (31°59'N, 59°52'W); ZMUC P201974 (1) Dana station 1072 (20°26'N, 61°03'W), ZMUC P201975 (1) Dana station 1352 (35°42'N, 73°43'W). Type catalog: Nielsen 1974:18 [ref. 9588]. •Valid as Eustomias simplex Regan & Trewavas 1930 -- (Gibbs in Whitehead et al. 1984:351 [ref. 13675], Gibbs & Barnett 1990:321 [ref. 14915], Harold 2003:912 [ref. 27001], Harold 2016:1814 [ref. 34568], Carneiro et al. 2019:99 [ref. 37250], Sutton et al. 2020:106 [ref. 37832], Fermon et al. 2022:177 [ref. 39448] with question, Page et al. 2023:88 [ref. 40505]). Current status: Valid as Eustomias simplex Regan & Trewavas 1930. Stomiidae: Melanostomiinae. Distribution: Circumglobal. North Atlantic [ref. 34568]. Habitat: marine.