FIGURE 18 in Demosponges from the sublittoral and shallow-circalittoral (<24m depth) Antarctic Peninsula with a description of four new species and notes on in situ identification characteristics

FIGURE 18. Mycale (Oxymycale) acerata Kirkpatrick, 1907. BELUM.Mc2015.617. A. In situ appearance, diver included for scale. B. Close up of surface in situ. C. Choanosomal skeleton, scale 1000 µm. D. Ectosomal skeleton, scale bar 1000 µm. E. Oxea, scale bar 100 µm. F. Microxea, scale bar 10 µm. G. Tiny oxea/raphide, scale bar 1 µm. H. Large chelae, scale bar 10 µm. I. Small chelae, scale bar 10 µm.