Polyclinum aurantium

Polyclinum aurantium
	Polyclinum aurantium
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Subphylum:	Tunicata
Class:	Ascidiacea
Order:	Enterogona
Suborder:	Aplousobranchia
Family:	Polyclinidae
Genus:	Polyclinum
Species:	P. aurantium
Binomial name
	Polyclinum aurantium; (Milne-Edwards, 1841)[1]
Synonyms
	Glossophorum sabulosum (Giard, 1872); Polyclinum cerebriforme Alder & Hancock, 1912; Polyclinum sabulosum Giard, 1872;

Polyclinum aurantium is a species of colonial sea squirt, a tunicate in the family Polyclinidae. It is native to shallow water in the northeastern Atlantic Ocean and Mediterranean Sea.

Description

Polyclinum aurantium forms globular or flat-topped mounds consisting of a number of zooids immersed in a common tunic. Each zooid has its own buccal siphon with six lobes, through which it draws in water, and the colony has a small number of common cloacal siphons, each with a long tongue-like projection, through which water is expelled. The individual zooids are up to 6 mm (0.24 in) long, and the colony is yellowish-brown or yellowish-grey and often coated with sand.[2]

Distribution and habitat

Polyclinum aurantium is native to the northeastern Atlantic Ocean. Its range extends from Norway southwards to the Mediterranean Sea. It occurs on rocks and other hard substrates at depths down to about 100 m (328 ft).[2]

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gollark: Why not just actually divide classes by ability/interest instead?

gollark: *Exactly* 1064 at a time.

gollark: We should teach 1064 instead.

gollark: Yes, but it's also bad and I think could relatively easily be done better.

References

Sanamyan, Karen (2014). "Polyclinum aurantium Milne Edwards, 1841". WoRMS. World Register of Marine Species. Retrieved 2015-02-05.
de Kluijver, M.J.; Ingalsuo, S.S. "Polyclinum aurantium". Macrobenthos of the North Sea: Tunicata. Marine Species Identification Portal. Retrieved 2015-02-05.

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[WoRMS-1] Sanamyan, Karen (2014). "Polyclinum aurantium Milne Edwards, 1841". WoRMS. World Register of Marine Species. Retrieved 2015-02-05.

[MSIP-2] Kluijver, M.J.; Ingalsuo, S.S. "Polyclinum aurantium". Macrobenthos of the North Sea: Tunicata. Marine Species Identification Portal. Retrieved 2015-02-05.