External characters
Massive, convoluted, lamellate.
Dimensions
Diameter approximatively 10cm.
Colour
white to grey, yellow to greenish in life;
Skeletal Characters
| Oscules | few, small, without lip, scattered on ridges. |
| Texture | firm, harsh. |
| Surface ornamentation | smooth. |
| Ectosomal skeleton | distinct dense cortex of small tangential large triactines, subdermal cavities directly under cortex; small sagittal triactines in oscular rim, similar to those observed for Leucetta chagosensis Dendy, 1913. |
| Choanosomal skeleton | regular triactines of 2 size classes form irregular meshwork; sagittal tetractines around exhalant canals, free actines into canals. |
| Megascleres | triactines: 3 size classes, regular, 1, ~750 × 80 µm, 2, ~200 × 20 µm, 3, ~150 × 20 µm; tetractines: sagittal, free actine curved, ~150 × 15 µm. |
| Microscleres | aquiferous system: leuconoid, excurrent canals open into larger canal leading to osculae, larger canal does not represent true atrium; spherical choanocyte chambers ~50–60 µm. |
Ecology and habitat
Rim of the pass, on rocky slope.
Distribution
In French Polynesia: Society islands
Hooper, J.N.A. (2014). QM1065 Leucetta microraphis (OTU QM1065) . 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).
