Species that contain: Melanocetus and johnsoni [ 12 ] records

braueri, Xenoceratias Koefoed [E.] 1944:6, Fig. 2 [Scientific Results of the Michael Sars North Atlantic Deep-Sea Expedition 1910 v. 4 (pt 2, no. 1); ref. 2651] North Atlantic, 34°59'N, 33°01'W, station 53, 2600 meters wire out, over 2615-2865 meters bottom depth. Holotype (unique): ZMUB 4309. Type catalog: Frøiland 1979:151 [ref. 21547]. •Synonym of Melanocetus johnsonii Günther 1864 -- (Scott & Scott 1988:239 [ref. 25518] as johnsoni, Bertelsen 1990:492 [ref. 15654] as johnsoni, Pietsch 2009:362 [ref. 30766]). Current status: Synonym of Melanocetus johnsonii Günther 1864. Melanocetidae. Habitat: marine.

brevirostris, Xenoceratias Regan [C. T.] & Trewavas [E.] 1932:57, Fig. 84 [Dana Report No. 2; ref. 3682] Sulawesi Sea, 3°20'N, 123°50'E, station 3739, about 1500 meters (3000 meters wire out). Holotype (unique): ZMUC P9247. Type catalog: Nielsen 1974:86 [ref. 9588]. •Synonym of Melanocetus johnsonii Günther 1864 -- (Bertelsen 1990:492 [ref. 15654] as johnsoni, Pietsch 2009:362 [ref. 30766]). Current status: Synonym of Melanocetus johnsonii Günther 1864. Melanocetidae. Habitat: marine.

cirrifer, Melanocetus Regan [C. T.] & Trewavas [E.] 1932:52, Pl. 2 (fig. 1); Figs. 76a-77 [Dana Report No. 2; ref. 3682] Banda Sea, Indonesia, 4°05'S, 128°16'E, station 3678, depth 2000 meters (4000 meters wire out). Holotype (unique): ZMUC P9258. Type catalog: Nielsen 1974:86 [ref. 9588]. Regarded as only a holotype; 3 more specimens questionably included. •Synonym of Melanocetus johnsonii Günther 1864 -- (Bertelsen 1990:492 [ref. 15654] as johnsoni, Pietsch 2009:362 [ref. 30766]). Current status: Synonym of Melanocetus johnsonii Günther 1864. Melanocetidae. Habitat: marine.

ferox, Melanocetus Regan [C. T.] 1926:33, Pl. 9 (fig. 1) [Danish Dana Expedition 1920-22 in the North Atlantic and the Gulf of Panama, Oceanographical Reports. v. 1 (no. 2); ref. 3679] Gulf of Panama (Pacific), 6°48'N, 80°33'W, depth 1550 meters (3100 meters wire out). Holotype (unique): ZMUC P9257. Type catalog: Nielsen 1974:86 [ref. 9588]. •Synonym of Melanocetus johnsonii Günther 1864 -- (Bertelsen 1990:492 [ref. 15654] as johnsoni, Pietsch 2009:362 [ref. 30766]). Current status: Synonym of Melanocetus johnsonii Günther 1864. Melanocetidae. Habitat: marine.

heterorhynchus, Xenoceratias Regan [C. T.] & Trewavas [E.] 1932:56, Fig. 82 [Dana Report No. 2; ref. 3682] 19°1.5'N, 120°13'E, South China Sea, sta 3716, depth about 1500 meters (3000 meters of wire out). Syntypes: BMNH 192.5.3.10 (1), ZMUC P9248 (1). Type catalog: Nielsen 1974:87 [ref. 9588]. •Synonym of Melanocetus johnsonii Günther 1864 -- (Maul 1973:667 [ref. 7171] as johnsoni Bertelsen 1990:492 [ref. 15654] as johnsoni, Pietsch 2009:362 [ref. 30766]). Current status: Synonym of Melanocetus johnsonii Günther 1864. Melanocetidae. Habitat: marine.

johnsonii, Melanocetus Günther [A.] 1864:302 [1], Pl. 25 [Proceedings of the Zoological Society of London 1864 (pt 2) (art. 6) (for 28 June 1864); ref. 5750] Sea of Madeira, eastern Atlantic. Holotype (unique): BMNH 1864.7.18.6. On p. 1 of separate. •Valid as Melanocetus johnsonii Günther 1864 [earlier authors used johnsoni] -- (Maul 1973:667 [ref. 7171], Amaoka in Amaoka et al. 1983:117, 197 [ref. 8379], Fujii in Uyeno et al. 1983:258 [ref. 14275], Amaoka in Masuda et al. 1984:108 [ref. 6441], Bertelsen in Whitehead et al. 1986:1376 [ref. 13677], Pietsch 1986:375 [ref. 5704], Paxton et al. 1989:287 [ref. 12442], Pequeño 1989:43 [ref. 14125], Paulin et al. 1989:140 [ref. 24556], McAllister 1990:232 [ref. 14674] as johnsoni, Bertelsen 1990:492 [ref. 15654], Stearn & Pietsch in Okamura et al. 1995:139 [ref. 22531], Swinney 1995:53 [ref. 22647], Stewart & Pietsch 1998:5 [ref. 23378], Santos et al. 1997:64 [ref. 23531], Arruda 1997:126 [ref. 24952] as johnsoni, McEachran & Fechhelm 1998:865 [ref. 23897], Fricke 1999:110 [ref. 24106], Trunov 1999:464 [ref. 24579] as johnsoni, Pietsch 1999:2028 [ref. 24766] as johnsoni, Nakabo 2000:474 [ref. 25086] as johnsoni, Caruso in Randall & Lim 2000:598 [ref. 25122], Sheiko & Fedorov 2000:24 [ref. 25650], Nakabo 2002:474 [ref. 26001], Anderson & Leslie 2001:4 [ref. 26165], Pietsch 2003:1059 [ref. 27014], Moore et al. 2003:214 [ref. 27076], Menezes in Menezes et al. 2003:65 [ref. 27192] as johnsoni, Love et al. 2005:59 [ref. 37547], Mundy 2005:269 [ref. 28379], Castellanos-Galindo et al. 2006:201 [ref. 28944], Paxton et al. 2006:657 [ref. 28994], Pietsch 2008:380 [ref. 30637], Pietsch 2009:361 [ref. 30766], Møller et al. 2010:45 [ref. 31169] as johnsoni, Parin et al. 2014:186 [ref. 33547], Stewart & Pietsch 2015:906 [ref. 34271], Ho et al. 2016:269 [ref. 34483], Pietsch 2016:2061 [ref. 34597], Robertson et al. 2017:71 [ref. 35676] as johnsoni, Banón et al. 2019:[2] 607 [ref. 38699], Burton & Lea 2019:52 [ref. 37205], Carneiro et al. 2019:215 [ref. 37250], Kenchington et al. 2020:[6] [ref. 37729], Sutton et al. 2020:233 [ref. 37832], Love et al. 2021:88 [ref. 39279], Mincarone et al. 2021:8 [ref. 38381], Eduardo et al. 2022:10 [ref. 39574], Fermon et al. 2022:302 [ref. 39448] possible). Current status: Valid as Melanocetus johnsonii Günther 1864. Melanocetidae. Distribution: Circumglobal in tropical through cold temperate seas. Habitat: marine.

krechi, Melanocetus Brauer [A.] 1902:293 [Zoologischer Anzeiger v. 25 (no. 668); ref. 631] East of Zanzibar, Tanzania, western Indian Ocean, 5°42'S, 43°36'E, Valdivia station 239, depth 0 to 2500 meters. Holotype (unique): ZMB 17688. •Synonym of Melanocetus johnsonii Günther 1864 -- (Bertelsen 1990:492 [ref. 15654] as johnsoni, Pietsch 2009:362 [ref. 30766]). Current status: Synonym of Melanocetus johnsonii Günther 1864. Melanocetidae. Habitat: marine.

laevis, Xenoceratias Regan [C. T.] & Trewavas [E.] 1932:56, Fig. 83 [Dana Report No. 2; ref. 3682] South China Sea, 14°37'N, 119°52'E, station 3731, depth about 1000 meters (2000 meters of wire out). Holotype (unique): ZMUC P9249. Type catalog: Nielsen 1974:87 [ref. 9588]. •Synonym of Melanocetus johnsonii Günther 1864 -- (Maul 1973:667 [ref. 7171] as johnson, Bertelsen 1990:492 [ref. 15654] as johnsoni, Pietsch 2009:362 [ref. 30766]). Current status: Synonym of Melanocetus johnsonii Günther 1864. Melanocetidae. Habitat: marine.

megalodontis, Melanocetus Beebe [W.] & Crane [J.] 1947:152, Fig. 1 [Zoologica, Scientific Contributions of the New York Zoological Society v. 31 (pt 4, no. 11); ref. 6539] 145 miles north of Clarion Island, eastern Pacific, 20°36'N, 115°07'W, depth 500 fathoms. Holotype (unique): CAS-SU 46488 [ex NYZS 25791]. Type catalog: Mead 1958:133 [ref. 20648]. •Synonym of Melanocetus johnsonii Günther 1864 -- (Bertelsen 1990:492 [ref. 15654] as johnsoni, Pietsch 2009:362 [ref. 30766]). Current status: Synonym of Melanocetus johnsonii Günther 1864. Melanocetidae. Habitat: marine.

micracanthus, Xenoceratias Regan [C. T.] & Trewavas [E.] 1932:55, Fig. 81 [Dana Report No. 2; ref. 3682] Eastern Atlantic, 0°31'S, 11°02'W, station 4000, depth about 2000 meters (4000 meters of wire out). Holotype (unique): ZMUC P9250. Type catalog: Nielsen 1974:87 [ref. 9588]. •Synonym of Melanocetus johnsonii Günther 1864 -- (Maul 1973:667 [ref. 7171] as johnsoni, Bertelsen 1990:492 [ref. 15654] as johnsoni, Pietsch 2009:362 [ref. 30766]). Current status: Synonym of Melanocetus johnsonii Günther 1864. Melanocetidae. Habitat: marine.

rotundatus, Melanocetus Gilchrist [J. D. F.] 1903:206, Pl. 15 [Marine Investigations in South Africa v. 2; ref. 1645] 36 miles off Cape Point Lighthouse, bearing N.E. 3/4 E, depth 600 fathoms. Holotype (unique): SAM (apparently lost). Second specimen questionably included and therefore not regarded as a type. •Synonym of Melanocetus johnsonii Günther 1864 -- (Pietsch 1986:375 [ref. 5704] as johnsoni, Bertelsen 1990:492 [ref. 15654] as johnsoni, Pietsch 2009:361 [ref. 30766]). Current status: Synonym of Melanocetus johnsonii Günther 1864. Melanocetidae. Habitat: marine.

spinulosus, Centrocetus Regan [C. T.] & Trewavas [E.] 1932:53, Fig. 79 [Dana Report No. 2; ref. 3682] Indian Ocean, 12°02'S, 96°43'E, station 3847, 3000 meters wire out. Lectotype: ZMUC P9246. Paralectotype: BMNH 1932.5.3.8 (1). Type catalog: Nielsen 1974:86 [ref. 9588]. Lectotype selected by Pietsch & Van Duzer 1980:73. •Synonym of Melanocetus johnsonii Günther 1864 -- (Maul 1973:667 [ref. 7171] as johnson, Bertelsen 1990:492 [ref. 15654] as johnsoni, Pietsch 2009:362 [ref. 30766]). Current status: Synonym of Melanocetus johnsonii Günther 1864. Melanocetidae. Habitat: marine.