Phylum [Porifera] Grant, 1836 - sponges Count: - Class Demospongiae Sollas, 1885 - demosponges Count: - Subclass Heteroscleromorpha Cárdenas, Pérez & Boury-Esnault, 2012 Count: - Order Halichondrida Vosmaer, 1887 Count: -