Fusus bifrons Sturany, 1900, Station 145 (east of Dahlak Island, Eritrea). A. Original figure of form typica by Sturany (1903). B–D, I–J. Figured syntype, NHMW 84147 (f. typica): front (B), right side (C), back (D), protoconch (I–J). E. Original figure of form paucicostata by Sturany (1903). F–H, K–L. Figured syntype, NHMW 84146 (f. paucicostata): front (F), right side (G), back (H), protoconch (K–L). Scale bar: B–D, F–H: 20 mm; I–J, K–L: 0.2 mm.