Annelida Lamarck, 1809 - segmented worms
Count: 3c;7o;15f;39g;79s;1ss
   Class Oligochaeta Grube, 1850 - oligochaetes see [unranked] oligochaetous Clitellata
  Count: -
     Order Opisthopora
    Count: -
       Family Octochaetidae Michaelsen, 1900
      Count: 7g;18s
         Genus [Eudichogaster] Michaelsen, 1902
        Count: 1s
           1 Eudichogaster chittagongensis Stephenson, 1917
          Count: -