External characters
Ranging from thin cylindrical digits erect on the substrate to globular or tubular digits completely attached to the substrate.
Colour
Grey, grey-brown to khaki brown alive; grey in etoh.
Skeletal Characters
Oscules | Small, on apex of surface or digits, with raised oscular lip that collapses in air. |
Texture | Fibrous, spongy, tough, difficult to tear. |
Surface_Ornamentation | Conulose, minutely reticulated surface pattern, membranous opaque in air. |
Ectosomal_Skeleton | Detritus packed surface forms a distinct "skin" visible to the naked eye. All detail of ectosome is obscured by the density of the detritus. |
Choanosomal_Skeleton | Primary fibres are cored with some detritus. Fibres form large rectangular mesh. Occasionally secondary fibres have also incorporated detritus. Mesohyl is moderately dense and granular. |
Megascleres | nil. |
Microscleres | nil. |
Mudmap_Author | P Sutcliffe |
Mudmap_Editor | J Hooper |
Distribution
In French Polynesia: Tuamotu archipelago
Ecology and habitat
In the lagoon, on pinnacles, in coral sand.
P Sutcliffe (2007). QM2075 Thorecta 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).