Sessile Organisms Plate data

Spirorbis is a genus of very small (2–5 mm (0.079–0.197 in)) polychaete worms, usually with a white coiled shell. Members of the genus live in the lower littoral and sublittoral zones of rocky shores. Spirorbis worms usually live attached to seaweeds, but some species live directly on rocks, shells or other hard substrates. Spirorbis was once thought to have a fossil record extending back into the Early Paleozoic, but now all pre-Cretaceous spirorbins are known to be microconchids.

The tubeworm is a solitary organism that has a hard tube for a home. less ↑

Ficopomatus enigmaticus, commonly known as the Australian tubeworm, is a species of serpulid tubeworms. Their true native range is unknown, but they probably originated in the Southern Hemisphere, perhaps from the Indian Ocean and the coastal waters of Australia. Today they have a cosmopolitan distribution, having been introduced to shallow waters worldwide. The Australian tubeworm is an invasive species that dominates and alters habitats, reduces water quality, depletes reso

Kingdom: Animalia
Phylum: Annelida
Class: Polychaeta
Subclass: Palpata
Order: Canalipalpata
Suborder: Sabellida
Family: Serpulidae

http://www.exoticsguide.org/ficopomatus_enigmaticus less ↑