Radiicephalus Osório [B.] 1917:113 Masc. Radiicephalus elongatus Osório 1917. Type by monotypy. •Valid as Radiicephalus Ocório 1917 -- (Palmer 1973:333 [ref. 7195], Olney 1984:369 [ref. 13656], Heemstra & Kannemeyer 1984:35 [ref. 5349], Palmer in Whitehead et al. 1986:733 [ref. 13676], Heemstra & Kannemeyer 1986:402 [ref. 5666], Olney et al. 1993 [ref. 21802], Olney 1999:1972 [ref. 24751], Olney 2003:956 [ref. 27007], Bray 2008:295 [ref. 30620], Roberts 2012:55 [ref. 32187], Koeda & Ho 2018:207 [ref. 36253]). Current status: Valid as Radiicephalus Osório 1917. Radiicephalidae.