External characters
thinly encrusting.
Colour
bright orange-yellow in life; beige-fawn in ethanol.
Skeletal Characters
Oscules | small, <1 mm (d), conspicuous over surface in ethanol. |
Texture | soft, compressible, resilient, easily torn. |
Surface_Ornamentation | smooth, yet velvety, microhispid. |
Ectosomal_Skeleton | not well distinguished from choanosome; surface penetrated by points of tylostyles. |
Choanosomal_Skeleton | vaguely radiating architecture; spicules emanante from basal layer of spongin; basal layer very dense; long tylostyles with heads embedded in spongin layer, radiate away from base, arranged perpendicular to basal layer; smaller tylostyles disorganised; pigment granules scattered throughout; incorporates small amount of detritus (diatoms, foreign sigmas, microxeas). |
Megascleres | tylostyles: 2 classes class 1: very large, ~1600 μm; ends sharply pointed, tyle blunt; tend to subtylote; class 2: smaller, finer, ~400 μm; ends very sharply pointed, tyle large, well-rounded. |
Microscleres | nil. |
Mudmap_Author | K Hall |
Mudmap_Editor | K Hall |
Distribution
In French Polynesia: archipelagos of the Society and Gambier
Ecology and habitat
In the lagoon, on hard substrate.