External characters
thickly encrusting.
Colour
Bright yellow with some olive yellow areas alive; greyish beige in ethanol.
Skeletal Characters
| Oscules | Several, moderately small, grouped into sieve plates that run along the apical ridge of the sponge. |
| Texture | Firm, compressible. |
| Surface_Ornamentation | Opaque, membranous; Even, unornamented alive but has fibre bundles protruding through the surface membrane in preservative. |
| Ectosomal_Skeleton | Membranous, without spicule skeleton. May be cavernous in subectosomal region. |
| Choanosomal_Skeleton | Regular reticulation of condensed secondary spongin fibres making up entire skeleton. All fibres clear and homogeneous in cross-section. Mesohyl collagen is light and homogeneous and totally lacks incorporated detritus. |
| Megascleres | nil. |
| Microscleres | nil. |
| Mudmap_Author | J Hooper |
| Mudmap_Editor | K Hall |
Ecology and habitat
On the outer reef slope.
Distribution
In French Polynesia: Gambier and Tuamotu islands
Hooper, J.N.A. (2013). QM1520 Dactylospongia metachromia 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).
