Phylum [Mollusca] Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Order Veneroida H. & A. Adams, 1856 see Order Venerida Gray, 1854
       Superfamily Solenacea see Superfamily Solenoidea Lamarck, 1809
         Family Cultellidae Davies, 1935 see Subfamily Cultellinae Davies, 1935
           Genus Phaxas Leach, 1852
             1 Subgenus Phaxas (Ensiculus) Adams, 1860
             2 Subgenus Phaxas (Phaxas) Leach, 1852