polyactis, Microbrotula Anderson [M. E.] 2005:38, Fig. 2 [Zootaxa No. 1006; ref. 28240] Northern end of Tijou Reef, 13°05'S, 143°57'E, Cape York Peninsula, Queensland, Australia. Holotype: AMS I.20779-128. Paratypes: USNM 227221 (1), 227224 (2), 227227 (5); WAM P.30811-005 (1). Type catalog: Moore et al. 2008:11 [ref. 30117]. Schwarzhans & Nielsen 2011:153 [ref. 31714] are the first revisers, selecting bentleyi over polyactis. •Valid as Microbrotula polyactis Anderson 2005 -- (Hoese & Gates 2006:573 [ref. 28997], Anderson 2007:7 [ref. 29164]). •Synonym of Microbrotula bentleyi Anderson 2005 -- (Schwarzhans & Nielsen 2011:153 [ref. 31714]). Current status: Synonym of Microbrotula bentleyi Anderson 2005. Bythitidae. Distribution: Western Pacific: Philippines to Australia [if valid]. Habitat: marine.