Micrognathus Duncker [G.] 1912:235 Masc. Syngnathus brevirostris Rüppell 1838. Type by original designation (also monotypic). •Valid as Micrognathus Duncker 1912 -- (Dawson 1982:25 [ref. 6764], Dawson 1982 [ref. 5441], Araga in Masuda et al. 1984:87 [ref. 6441], Dawson 1985:121 [ref. 6541], Dawson 1986:454 [ref. 5650], Paxton et al. 1989:425 [ref. 12442], Paulus 1999:2269 [ref. 24794], Fritzsche & Vincent 2003:1222 [ref. 27044], Paxton et al. 2006:834 [ref. 29073], Kuiter 2009:233 [ref. 30404], Hamilton et al. 2016:Supplement 2 [ref. 35615], Fricke et al. 2018:124 [ref. 35805], Golani & Fricke 2018:51 [ref. 36273], Fricke et al. 2019:95 [ref. 36673]). Current status: Valid as Micrognathus Duncker 1912. Syngnathidae: Syngnathinae.