Salmacina dysteri
From Wikipedia, the free encyclopedia
| Salmacina dysteri | |
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Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Annelida |
| Clade: | Pleistoannelida |
| Clade: | Sedentaria |
| Order: | Sabellida |
| Family: | Serpulidae |
| Genus: | Salmacina |
| Species: | S. dysteri |
| Binomial name | |
| Salmacina dysteri | |
| Synonyms | |
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Salmacina dysteri is a species of tube-forming annelid worm in the family Serpulidae. It is found on submerged rocks, reefs, piles and boats in many shallow and deeper water environments around the world.
Salmacina dysteri lives in a slender white tube that it constructs, which is up to 15 mm (0.6 in) long and 5 mm (0.2 in) wide. It is a gregarious species and forms agglomerations of intertwined tubes. The branchial crown, which projects from the end of the tube, has two groups of four radioles (heavily ciliated, feather-like tentacles). This worm has seven to nine thoracic segments and the tube has no operculum (lid).[2] Unlike the two-layer tubes of many related species, the opaque tube of Salmacina dysteri consists of a single, porous layer. [3]