elongatus, Pseudomonacanthus Fraser-Brunner [A.] 1940:66, Pl. 23 (fig. 2) [Bulletin of the Raffles Museum No. 16; ref. 17235] Questionably Tasmania, Australia. Holotype (unique): BMNH 1911.4.1.59. •Valid as Pseudomonacanthus elongatus Fraser-Brunner 1940 -- (Hutchins 1977:56 [ref. 2283], Hutchins 2001:48 [ref. 25847], Hutchins 2001:3945 [ref. 26316], Allen et al. 2006:1896 [ref. 29098], Larson et al. 2013:234 [ref. 32988], Matsuura 2014:13 [ref. 33576], Gloerfelt-Tarp & Kailola 2022:297 [ref. 41223]). Current status: Valid as Pseudomonacanthus elongatus Fraser-Brunner 1940. Monacanthidae. Distribution: Eastern Indian Ocean, western Pacific: Australia. Habitat: marine.