Halisarca laxus - Tuamotu - Toau

Halisarca laxus OTU QM1485

Chondrillida Halisarcidae

External characters

thinly encrusting, slightly lobate, subspherical

Colour

live colouration ranging from pink to pale white when growing in shelter; grey in ethanol.

Skeletal Characters

Oscules obvious, one to several per lobe, with raised lip
Texture soft, slimy
Surface_Ornamentation even, unornamented: opaque, optically smooth.
Ectosomal_Skeleton skin-like, collagenous; may have "leopard-spotted" appearance in cross section with dark pigment granules forming dense "crust"
Choanosomal_Skeleton with dense collagen and pigment granules throughout, some cavernous oval canals, some canals appear to be lined with type A spongin
Megascleres nil
Microscleres nil
Mudmap_Author K Hall
Mudmap_Editor K Hall

Ecology and habitat

In the lagoon, on pinnacles.

Distribution

In French Polynesia: Tuamotu is.

Pacific Ocean: Australia

Hooper, J.N.A. (2014). QM1485 Halisarca laxus. 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).