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.