Spirastrella sp (3137) - Tuamotu - Hao

Spirastrella sp. (OTU QM3137) OTU QM3137

Hadromerida Spirastrellidae

External characters

massive, thickly lobate.

Colour

dark red on deck; cream and orange in ethanol

Skeletal Characters

Oscules numerous, large, no lip, scattered over mounds.
Texture slightly compressible, tearable.
Surface_Ornamentation goose-flesh.
Ectosomal_Skeleton thick, dense layer of spirasters.
Choanosomal_Skeleton thick tracts of tylostyles anastomosing irregularly throughout; tylostyles and spirasters scattered throughout; no fibres; collagen moderate.
Megascleres tylostyles: ~300 µm.
Microscleres spirasters: 2 size classes, 1, thick, robust, ~30 µm, 2, thin, fine, ~20 µm.
Mudmap_Author J Hooper
Mudmap_Editor K Hall

Distribution

In French Polynesia: Tuamotu, Autrales archipelagos and Tahiti

Ecology and habitat

In the lagoon: on pinacles, on the fringing reef