Hyrtios sp. (OTU QM4761) OTU QM4761

Dictyoceratida Thorectidae

External characters

massive, irregular, lobate.

Colour

exterior dark brown to khaki in ethanol.

Skeletal Characters

Oscules large, on ends of lobes, circular, 6–7 mm (d).
Texture dense, tearable, barely compressible.
Surface_Ornamentation highly conulose; conules 1–2 mm (h), spaced ~2 mm apart.
Ectosomal_Skeleton not conspicuously distinguished from choanosome; conules raised by large fibres which protrude though ectosome.
Choanosomal_Skeleton fibrous; reticulation of primary and secondary fibres; primaries not differentiated from secondaries; fibres regularly spaced, strongly cored with sand; mesohyl collagenous, incorporates small amounts of detritus and pigment.
Megascleres nil.
Microscleres nil.
Mudmap_Author Kathryn Hall
Mudmap_Editor Kathryn Hall

Distribution

In French Polynesia: Society archipelago

Ecology and habitat

In the lagoon, on coral sand.

Kathryn Hall (2012). QM4761 Hyrtios 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).