Taxonomic revision of the flathead fish genus Platycephalus Bloch, 1785 (Teleostei: Platycephalidae) from Australia, with description of a new species Author Imamura, Hisashi text Zootaxa 2015 3904 2 151 207 journal article 10.11646/zootaxa.3904.2.1 adefe9de-0ca5-479a-b736-ad242c7f0fe4 1175-5326 233552 CEC37C0D-A25D-43C1-8F3C-127919282F35 Platycephalus grandispinis Cuvier in Cuvier & Valenciennes, 1829 Common English name: Longspine flathead ( Figs. 6–7 ) Platycephalus grandispinis Cuvier in Cuvier & Valenciennes, 1829 : 242 ( type locality: unknown); Imamura, 2013b : 187 , figs. 1–3, 5–6, 8–9. Platycephalus longispinis Macleay, 1884 : 170 ( type locality: outside Port Jackson, NSW, Australia ); McCulloch, 1929 : 401 ; Coleman, 1980 : 108 , unnumbered color fig.; Hutchins & Thompson, 1983 : 78 , fig. 111; Hutchins & Swainston, 1986 : 127 , fig. 199; May & Maxwell, 1986 : 276 , unnumbered fig.; Paxton & Hanley, 1989 : 469 ; Knapp, 1991 : 29 , tab. 3; Kuiter 1993 : 102 , unnumbered fig.; Hoese et al ., 2006 : 942 ; Imamura, 2006: 305, tab. 1. Longitrudis longispinis : Whitley, 1931a : 327 ; Whitley, 1931b : 159 ; Whitley, 1964 : 57 . Material examined. Holotype : MNHN 6844, 212 mm SL , locality unknown [see Imamura (2013b) who inferred the holotype as having been collected from the area between Shark Bay (ca. 25°S) and Doubtful Islands (ca. 120°E)]. Other specimens: 44 specimens , including AMS I.16355-001, 233 mm SL , holotype of Platycephalus longispinis Macleay, 1884 , 120– 286 mm SL , from southeastern to southwestern Australia , listed in Imamura (2013b) . Diagnosis. A species of Platycephalus with the following combination of characters: 14 second dorsal- and anal-fin rays; 73–82 pored lateral-line scales; gill rakers 4–7 + 14–19 = 19–26; interorbit becoming broader with growth, shorter than orbital diameter; a distinct interopercular flap absent (sometimes a small flap or weak convexity present); supraoccipital with a ridge, usually ending in a spine; lower preopercular spine much longer than upper, usually closely approaching posterior margin of opercle, ratio of lower/upper spines 1.9–3.3, tending to become smaller with growth; upper jaw without large caniniform teeth; head and body without small dark dots; posteroventral portion of caudal fin with a blackish or dark brownish marking. Description. A full description was given by Imamura (2013b) . Distribution. Known from southeastern to southwestern Australia , from Fraser Island, Qld (ca. 25°S), across NSW, Vic and SA to Shark Bay, WA (ca. 25°S) in depths from ca. 17 to 91 m (e.g., Hutchins and Thompson, 1983 ; Kuiter, 1993 ; Hoese et al ., 2006 ; Imamura, 2013b ; this study). Size. Maximum length 38 cm ( May & Maxwell, 1986 ; Kuiter, 1993 ). The largest specimen examined during the present study was 286 mm SL ( 332 mm TL). Remarks. The name Platycephalus grandispinis had been largely forgotten until Imamura (2013b) showed it to have priority over a well-known species, P. longispinis , following detailed examinations of holotypes of the two nominal species ( Figs. 7 ) and non-type specimens. See Imamura (2013b) for a discussion of P. grandispinis . A comparison of P. grandispinis with P. bassensis is provided herein under the latter.