parallelum, Myctophum Lönnberg [E.] 1905:764 [Zoologischer Anzeiger v. 28 (no. 23); ref. 15369] South Atlantic, 48°27'S, 42°36'W [or 44°36'W], open net to depth of 2500 meters. Holotype (unique): NRM 43056. Also appeared as new in Lönnberg 1905:62 [ref. 2839]. •Valid as Protomyctophum (Hierops) parallelum (Lönnberg 1905) -- (Prokofiev 2004:74 [ref. 28609], Duhamel et al. 2005:218 [ref. 32059]). •Valid as Protomyctophum parallelum (Lönnberg 1905) -- (Paxton 1979:17 [ref. 6440], Hulley 1986:316 [ref. 5672], Paxton et al. 1989:268 [ref. 12442], Pequeño 1989:38 [ref. 14125], Hulley 1990:169 [ref. 21685], Hutchins 2001:21 [ref. 25847], Paxton et al. 2006:529 [ref. 28994], Paxton & Bray 2008:292 [ref. 30633], Robertson & Clements 2015:676 [ref. 34257], Balushkin & Prirodina 2020:71 [ref. 37828], Sutton et al. 2020:213 [ref. 37832] in subgenus Hierops, Koerber 2024:47 [ref. 41215]). Current status: Valid as Protomyctophum parallelum (Lönnberg 1905). Myctophidae: Myctophinae. Distribution: Circumglobal in Southern Hemisphere. Habitat: marine.