A second type of deep-sea sponge aggregation was identified with high confidence from photographic surveys of Hatton Bank (Narayanaswamy et al 2006; Roberts et al 2008), with densities of vase-shaped glass sponges (possibly Aphrocallistes bocagei) approximately 0.3855 sponges/m2 (Bullimore et al 2013). These were found in waters 836–841m deep on mud-draped boulders, pebbles and cobbles. These assemblages supported a high biological diversity of epifauna including Stichopathes, Psolusand ophiuroids and anemones
