Phylum Porifera Grant, 1836 - sponges
Count: [o†f] 3c;29o;74f; †1c;9o;134f [17 Jul 2018]
   Class Demospongea Sollas, 1875 see Class Demospongiae Sollas, 1885
  Count: [o†f] 18o;41f; †5o;82f;531g [17 Jul 2018]
     Subclass Ceractinomorpha Lévi, 1953 see Class Demospongiae Sollas, 1885
    Count: [o†f] 7o;15f; †2o;35f;177g [16 Jul 2018]
       Order Halichondrida Vosmaer, 1887
      Count: [f†g] 1f; †1f;2g [22 Jun 2018]
         1 Family Halichondriidae Gray, 1867
        Count: [†g] †1g
         2 ?Family †Hymeniacidonidae de Laubenfels, 1936 see Family Halichondriidae Gray, 1867
        Count: [†g] †1g