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Lundbeck, 1910

Species Overview

Histodermella ingolfi Lundbeck (1910) is a bladder-like deep water sponge recorded from Ireland and Iceland. It differs from similar sponges of the genus Coelosphaera in having spined acanthoxeas.

Taxonomic Description

Colour: Yellowish white in alcohol (choanosome deeper yellow).
Shape, size, surface and consistency: Thick-walled, rounded or elongated bladder-like body, giving off thin-walled fistules. Size up to 30 mm long by 10 mm in diameter.
Spicules: (Histodermella ingolfi spics) Megascleres: Tylotes 250-600 x 19 µm; acanthoxeas, very heavily spined, 200-250 x 16 µm. Microscleres: Arcuate isochelae 20 µm; sigmas: 16 µm.
Skeleton: Tangential tylotes form a crust-like ectosome; choanosome without coherent skeleton, acanthoxeas scattered in the surface and interior.
Ecology: Deep water, down to 900 m, in crevices of dead Lophelia.
Distribution: Off Iceland, SW Ireland.
Etymology: Named after the North Atlantic Danish Ingolf Expedition, 1900.
Type specimen information: In the Zoologisk Museum of Copenhagen (ZMK).

Remarks

The genus Histodermella is closely related to Coelosphaera, differing from it primarily by the characteristic acanthoxeas.
Source: Stephens, 1920.

Histodermella ingolfi