Hymedesmia jecusculum


Hymedesmia jecusculum is a species of demosponge in the family Hymedesmiidae.

Distribution

This species was described from a cave on the coast of Harris in the Outer Hebrides, Scotland, United Kingdom where it was collected at low water spring tides by Captain F.W.L Thomas of the Hydrological Survey.

Description

This sponge has acanthostyles of two size classes, 360-430 µm and 120-140 µm in length. The skeleton spicules are slightly fusiform tornotes with one end pointed and the other slightly rounded, 270-350 µm in length. The chelae are curved isochelae with the alae equal to the gap between them, 20-26 µm in length.