Synagrops Günther [A.] 1887:16 Masc. Melanostoma japonicum Döderlein 1883. Type by being a replacement name. Replacement for Melanostoma Döderlein in Steindachner & Döderlein 1883, preoccupied by Melanostoma Schiner 1860 in Diptera and Malanostoma Stål in Hemiptera 1872. •Valid as Synagrops Günther 1887 -- (Mochizuki in Masuda et al. 1984:124 [ref. 6441], Mochizuki & Sano 1984 [ref. 6730], Heemstra 1986:562 [ref. 5660], Carpenter 1999:2437 [ref. 24813] in Acropomatidae, Paxton et al. 1989:514 [ref. 12442] and Mochizuki & Gultneh 1989 [ref. 13505] in Percichthyidae, Stella Mejía et al. 2001:203 [ref. 40798], Heemstra 2003:1301 [ref. 27043], Paxton et al. 2006:978 [ref. 28994], Prokofiev 2007:423 [ref. 29273] in Doderleiniidae, Shinohara et al. 2011:48 [ref. 31715], Fraser 2013:25 [ref. 32555], Fricke et al. 2015:8 [ref. 33930], Roberts 2015:1174 [ref. 34193], Prokofiev & Schwarzhans 2015:83 [ref. 35428], Yamanoue 2016:1 [ref. 34736], Schwarzhans & Prokofiev 2017:56 [ref. 35293], Motomura et al. 2017:79 [ref. 35490], Fricke et al. 2018:143 [ref. 35805], Golani & Fricke 2018:80 [ref. 36273]). Current status: Valid as Synagrops Günther 1887. Synagropidae.