Xenoceratias Regan [C. T.] & Trewavas [E.] 1932:54 Masc. Xenoceratias longirostris Regan & Trewavas 1932. Not available from Regan & Trewavas 1932 (Art. 13.3). Subsequent publication in an available way not researched; not made available in the Zoological Record for 1932. •In the synonymy of Melanocetus Günther 1864 -- (Pietsch & Van Duzer 1980:70 [ref. 5333], Pietsch 2009:360 [ref. 30766]). Current status: Uncertain as Melanocetus Günther 1864. Melanocetidae.