Morphological description (show/hide)
| Boring | | Brown, yellowish | | Brown | | Firm and hard | | The specimens exhibit inhalant, closed, often gathered fistules, and large exhalant fistules. The basal parts of the sponge, in contact with the substrate, are full of bored material engulfed in the tissue. | | Compact and confused in the internal part | | In the peripherical parts, tracts of tylostyles running toward the surface are detectable. Tips of the spicules hispid the surface. Microscleres are concentrated in the external parts creating a crust of spirasters. | | Tylostyles in general straight, slightly curved, heads from rounded to ovoid, 230-(461.7?130.8)-770 x 5-(10.9?3.5)-16.2 um | | Spirasters are variable in shape from spirasters with one bend and spines in bouquets at the extremities and along the convex parts, to spirasters with three or four bends often with simple conical spines 10-(15?7.2)-37.5 x 2.5 um |
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