gracilis, Gastrocyathus Briggs [J. C.] 1955:47, Fig. 87 [Stanford Ichthyological Bulletin v. 6; ref. 637] Island Bay, Wellington, New Zealand. Holotype: NMNZ P.1576. Paratypes: NMNZ P.1577 (6); CAS-SU 47674-75 (1, 2). Type catalog: Hardy 1990:9 [ref. 18942]. •Valid as Gastrocyathus gracilis Briggs 1955 -- (Paulin et al. 1989:141 [ref. 24556], Paulin & Roberts 1992:48 [ref. 24625], Stewart 2015:1547 [ref. 34196]). Current status: Valid as Gastrocyathus gracilis Briggs 1955. Gobiesocidae: Haplocylicinae. Distribution: New Zealand region. Habitat: marine.