Grammonoides Smith [J. L. B.] 1948:343 Masc. Grammonus opisthodon Smith 1934. Type by original designation (also monotypic). •Valid as Grammonoides Smith 1948 -- (Cohen & Nielsen 1978:47 [ref. 881], Cohen 1986:356 [ref. 5646]). •Synonym of Grammonus Gill 1896 -- (Nielsen & Cohen in Nielsen et al. 1999:96 [ref. 24448], Castellanos-Galindo et al. 2006:206 [ref. 28944], Møller et al. 2016:Appendix A [ref. 34432] in Bythitidae). Current status: Synonym of Grammonus Gill 1896. Bythitidae.