brevidorsalis, Aphyonus Nielsen [J. G.] 1969:20, Fig. 6 [Galathea Report v. 10; ref. 3195] Off Durban, KwaZulu-Natal, South Africa, 34°09'S, 30°45'E, southwestern Indian Ocean, Galathea station 194, depth 4360 meters. Holotype (unique): ZMUC P77452. Type catalog: Nielsen 1974:79 [ref. 9588]. •Valid as Aphyonus brevidorsalis Nielsen 1969 -- (Nielsen 1969:20 [ref. 3195], Cohen & Nielsen 1978:61 [ref. 881], Nielsen 1986:357 [ref. 5699], Nielsen & Cohen in Nielsen et al. 1999:138 [ref. 24448], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). •Valid as Paraphyonus brevidorsalis (Nielsen 1969) -- (Nielsen 2015:332 [ref. 34016]). Current status: Valid as Paraphyonus brevidorsalis (Nielsen 1969). Bythitidae. Distribution: South Africa (Indian Ocean) (rare). Habitat: marine.