Swiftia pallida
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| Swiftia pallida | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Subphylum: | Anthozoa |
| Class: | Octocorallia |
| Order: | Malacalcyonacea |
| Family: | Plexauridae |
| Genus: | Swiftia |
| Species: | S. pallida |
| Binomial name | |
| Swiftia pallida Madsen, 1970 [1] | |
| Synonyms[2] | |
| |
Swiftia pallida is a species of gorgonian-type octocoral in the family Plexauridae sometimes known as the northern sea fan. At one time it was considered to be a subspecies of Swiftia rosea.[2]
Swiftia pallida usually has a single main stem arising from a narrow base and is sparsely branched. Its normal height is about 80 mm (3 in) but it can grow to 200 mm (8 in). The polyps are mostly arranged alternately, but somewhat irregularly, on either side of the stem and branches. Each polyp is supported by eight spindle-shaped sclerites, spiny skeletal elements, which run from the stem or branch to the bases of the eight tentacles. In the north of its range, this species is usually white or pale grey, but in the Mediterranean it may be pink or red.[2] This sea fan resembles pale varieties of the more common Swiftia rosea but is less bushy with fewer branches.[3]