Cephalurus Bigelow [H. B.] & Schroeder [W. C.] 1941:73 Masc. Catulus cephalus Gilbert 1892. Type by original designation (also monotypic). •Valid as Cephalurus Bigelow & Schroeder 1941 -- (Springer 1979:45 [ref. 4175], Compagno 1984:305 [ref. 6846], Compagno 1988:131 [ref. 13488], Compagno 1999:479 [ref. 25589], Castro 2011:292 [ref. 31457], Del Moral-Flores et al. 2016:80 [ref. 34398], Ehemann et al. 2018:22 [ref. 36194]). Current status: Valid as Cephalurus Bigelow & Schroeder 1941. Pentanchidae.