kreffti, Nemamyxine McMillan [C. B.] & Wisner [R. L.] 1982:34 [Archiv für Fischereiwissenschaft v. 32 (nos 1-3) (for 1981); ref. 8308] Off Rio de La Plata, Walther Herwig station 244/66, 36°51'S, 54°01'W, Argentina, depth 800 meters. Holotype (unique): ISH [ZMH] 1144-1966. Type catalog: Krefft 1987:72 [ref. 20751]. •Valid as Nemamyxine kreffti McMillan & Wisner 1982 -- (Fernholm 1998:35 [ref. 23976], Mincarone 2001:19 [ref. 26633], Mincarone in Menezes et al. 2003:21 [ref. 27192], Knapp et al. 2011:405 [ref. 37507], Zintzen et al. 2015:379 [ref. 33803], Koerber 2023:37 [ref. 40486]). Current status: Valid as Nemamyxine kreffti McMillan & Wisner 1982. Myxinidae: Myxininae. Distribution: Southwestern Atlantic: southern Brazil south to northern Argentina. Habitat: marine.