cyaneus, Bathylychnus Brauer [A.] 1902:289 [Zoologischer Anzeiger v. 25 (no. 668); ref. 631] Between Sri Lanka and Maldives, Indian Ocean, 4°56'N, 78°15'03"E, Valdivia station 217, depth 2000 meters. Holotype (unique): ZMB 17434. The gender of Astronesthes is feminine, and cyaneus an adjective; therefore ending cyanea is correct when in genus Astronesthes. •Valid as Astronesthes cyaneus (Brauer 1902) -- (Gibbs 1964:318 [ref. 6960], Yamamoto in Okamura et al. 1982:81, 328 [ref. 8256], Fujii in Masuda et al. 1984:49 [ref. 6441], Paxton et al. 1989:194 [ref. 12442], Parin & Borodulina 1997:776 [ref. 23751], Harold 1999:1906 [ref. 24741], Shinohara et al. 2001:297 [ref. 25995], Nakabo 2002:329 [ref. 26001], Parin & Borodulina 2003:595 [ref. 27333], Mundy 2005:173 [ref. 28379], Kenaley et al. 2008:241 [ref. 30630], Fricke et al. 2014:25 [ref. 33932], Fricke et al. 2018:67 [ref. 35805], Carneiro et al. 2019:93 [ref. 37250]). •Valid as Astronesthes cyanea (Brauer 1902) -- (Shinohara et al. 1996:162 [ref. 26605], Nakabo 2000:329 [ref. 25086]). Current status: Valid as Astronesthes cyanea (Brauer 1902). Stomiidae: Astronesthinae. Distribution: Indo-Pacific: Madagascar east to Galapagos Islands (Ecuador), north to Ogasawara Islands. Habitat: marine.