Cotylopus Guichenot [A.] 1863:9 Masc. Cotylopus acutipinnis Guichenot 1863. Type by subsequent designation. Type apparently first designated by Bleeker 1874:313 [ref. 437]. •Valid as Cotylopus Guichenot 1863 -- (Maugé 1986:366 [ref. 6218], Watson 1995:63 [ref. 22316], Watson et al. 2000:13 [ref. 25138], Keith et al. 2005:1396 [ref. 28139], Watson & Kottelat 2006:121 [ref. 28766], Keith et al. 2009:476 [ref. 30474] dated 1864, Keith et al. 2011:312, 317 [ref. 31023] dated 1864, Keith et al. 2011:2725 [ref. 31651], Keith & Lord 2011:126 [ref. 31730], Keith & Lord 2011:244 [ref. 31741], Parenti 2021:410 [ref. 38603]). Current status: Valid as Cotylopus Guichenot 1863. Oxudercidae: Sicydiinae.