External characters
Spherical, bulbous.
Colour
White alive; white on deck; white in ethanol.
Skeletal Characters
Oscules | Several, small, scattered over surface, slightly raised. |
Texture | Firm, barely compressible. |
Surface_Ornamentation | Lightly translucent; Even, unornamented, but subdermal drainage canals are barely visible beneath surface. |
Ectosomal_Skeleton | Paucispicular, tangential layer of oxeas frequently penetrated by multispicular tracts of oxeas from the choanosome. Scattered fine sand detritus may occur on the surface.SUBMultispicular tracts of up to 40 oxeas extend from the choanosome to the surface producing meshes of up to 1.5 mm in diameter. |
Choanosomal_Skeleton | Confused reticulation of uni- or paucispicular tracts of oxeas. Mesohyl collagen is light and homogeneous. |
Megascleres | Oxeas (2 size classes) |
Microscleres | nil. |
Mudmap_Author | J Hooper |
Mudmap_Editor | K Hall |
Distribution
In French Polynesia: Society archipelago, Tahiti
In Pacific ocean: Australia
Ecology and habitat
In caves.
J Hooper (2014). QM1852 Halichondria (Halichondria) sp. (OTU QM1852) . 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).