Aplysinella rhax - (2027) - Marquises - Tahuata

Aplysinella rhax OTU QM2027

Verongiida Aplysinellidae

External characters

thickly encrusting, short projections occasionally erect on surface.

Colour

rusty red colour in life; unknown colour on deck; dark brown in ethanol.

Skeletal Characters

Oscules conspicuous, discrete, apical on erect projections, perhaps with siphon extending along side of projection before apex, with raised membranous lip; oscules not visible in preserved specimens.
Texture soft, compressible.
Surface_Ornamentation opaque, membranous, optically smooth; uneven, with irregular, bumpy surface overlying small clumps of fibres which barely project through surface and visible only in preserved specimens where surface membrane has collapsed.
Ectosomal_Skeleton membranous, unarmoured, regularly pushed up into complex conules by clumps of several fibres; membrane darkly pigmented, highly collagenous.
Choanosomal_Skeleton fibrous; irregular reticulation of fibres; fibres possibly dendritic, cored fully with sand detritus; mesohyl collagen dense, highly granular, contains rare fine sand detritus.
Megascleres nil.
Microscleres nil.
Mudmap_Author J Hooper
Mudmap_Editor K Hall

Distribution

In French Polynesia: Marquesas archipelago is.

Pacific Ocean: Australia, Fiji, Vanuatu, Tonga, Palau

China sea: Malaysia

Ecology and habitat

On rocky slope.

J Hooper (2014). QM2027 Aplysinella rhax (de Laubenfels, 1954). 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).