Annelida Lamarck, 1809 - segmented worms
   "polychaetes" see Class Polychaeta Grube, 1850
     Palpata G.W. Rouse & K. Fauchald, 1997
       Aciculata G.W. Rouse & K. Fauchald, 1997
         Phyllodocida see Order Phyllodocida Dales, 1962
           Aphroditiformia see Suborder Aphroditiformia Levinsen, 1883
             Family Sigalionidae Kinberg, 1856
               Subfamily Sigalioninae (Kinberg, 1856) Pettibone, 1997
                 Genus Neoleanira Pettibone, 1970
                   Neoleanira tetragona (Oersted, 1845)