Dysidea sp (4759) - Societe - Raiatea

Dysidea sp. (OTU QM4759) OTU QM4759

Dictyoceratida Dysideidae

External characters

fragment; massive, amorphous, deep surface crevices.

Colour

blue-grey in life; interior grey to cream, exterior darker in ethanol.

Skeletal Characters

Oscules few, sparse, large, rounded, 6–7 mm (d), between ridges.
Texture soft, tears, compressible, resilient.
Surface_Ornamentation regularly shaggy, highly conulose, fibres protrude through tips of conules; conules 3–4 mm (h), spaced ~6 mm apart.
Ectosomal_Skeleton distinguished from choanosome; conules raised by large fibres which protrude through ectosome; large amount of detritus incorporated at surface; ectosome pigmented.
Choanosomal_Skeleton fibrous; fibres thick, not laminated, very strongly cored with sand, obscuring detail; mesohyl incorporates sand grains and pigment in granules.
Megascleres nil.
Microscleres nil.
Mudmap_Author Kathryn Hall
Mudmap_Editor Kathryn Hall

Distribution

In French Polynesia: Society, Australes islands.

Ecology and habitat

In the lagoon, in caves, in sandy/sedimentary environment.

Kathryn Hall (2012). QM4759 Dysidea sp. In: Hall, K.A. & Hooper, J.N.A. (2014) SpongeMaps: an online community for taxonomy and identification of sponges. (Available at http://www.spongemaps.org).

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