cyanocephala, Paraholtbyrnia Krefft [G.] 1967:2, Fig. 1 [Archiv für Fischereiwissenschaft v. 18 (no. 1); ref. 2687] South of Canary Islands, central Atlantic, 23°50'N, 20°08'W, depth 500-220 meters. Holotype: ISH 194-1966. Paratypes: ISH 294-1966 a-d (4), 332-1966 a-c (3), 441-1966 (1), 494-1966 a-b (2). Type catalog: Krefft 1978:8 [ref. 9884]. •Valid as Paraholtbyrnia cyanocephala Krefft 1867 -- (Matsui & Rosenblatt 1987:52 [ref. 10670], Quéro et al. 1990:271 [ref. 14648]). •Valid as Holtbyrnia cyanocephala (Krefft 1967) -- (Sazonov 1999:1895 [ref. 24740], Orrell & Hartel 2016:1777 [ref. 34567], Sutton et al. 2020:49 [ref. 37832]). Current status: Valid as Holtbyrnia cyanocephala (Krefft 1967). Platytroctidae. Distribution: North Atlantic; eastern Atlantic; Indian Ocean. Habitat: marine.