Morphological description (show/hide)
| spherical-bulbous | | light greyish-brown in life, dark greyish-bro | | light grey in ethanol | | sieve-plates large, scattered over surface, some individual, moderately small | | tough, compressible, difficult to tear | | opaque, membranous, uneven, prominently conulose, conules large, 3-dimensional, interconnected by tangential, web-like arrangement of thick fibres | | fibrous, widely-spaced fasciculations of primary and secondary spongin fibre, fibres push surface up into conules, primary fibres fully cored by moderate-sized sand grains, secondary fibres mainly clear of detritus, mesohyl contains abundant collagen filament, collagen filaments thick, knobbed, occur in whorls, mesohyl contains sand detritus only in localised area | | membranous, arenaceous, with fine crust of minute sand grains | | nil | | nil |
|
