SILICEOUS SPONGES (Hexactinellid sponges, including glass sponges)

PO9. SHARP LIPPED BOOT SPONGE, boot sponge, chimney sponge

Rhabdocalyptus dawsoni, Bathydorus dawsoni

PO10. ROUND LIPPED BOOT SPONGE, boot sponge, chimney sponge

Staurocalyptus dowlingi, Rhabdocalyptus dowlingi

PO11. CLOUD SPONGE, clay pipe sponge

Aphrocallistes vastus, Aphrocallistes whiteavesianus

PO12. FINGERED GOBLET SPONGE, goblet sponge, vase sponge

Heterochone calyx, Chonelasma calyx