Rachoviscus Myers [G. S.] 1926:1 Neut. Rachoviscus crassiceps Myers 1926. Type by monotypy. •Valid as Rachoviscus Myers 1926 -- (Géry 1977:347 [ref. 1597], Weitzman & Cruz 1981:997 [ref. 8528], Weitzman et al. 1986:343 [ref. 5984], Weitzman et al. 1988:420 [ref. 13557], Malabarba 1998:231 [ref. 23844], Lima in Reis et al. 2003:155 [ref. 27061], Mirande 2009:7 [ref. 30267] and Mirande 2010:524 [ref. 31006] in Characidae, Aphyocharacinae with question, Thomaz et al. 2010:1350 [ref. 31210], Tagliacollo et al. 2012:298 [ref. 31996] but excluded from Aphyocharacinae, Melo et al. 2024:26 [ref. 41541] in Thayeriinae). Current status: Valid as Rachoviscus Myers 1926. Acestrorhamphidae: Thayeriinae.