Antipathes dichotoma

Antipathes dichotoma
	Growing in Bali, Indonesia
Scientific classification
Kingdom:	Animalia
Phylum:	Cnidaria
Class:	Anthozoa
Order:	Antipatharia
Family:	Antipathidae
Genus:	Antipathes
Species:	A. dichotoma
Binomial name
	Antipathes dichotoma; Pallas, 1776 [1]
Synonyms
	Antipathes aenea von Koch, 1889; Antipathes mediterranea Brook, 1889;

Antipathes dichotoma is a species of colonial coral in the order Antipatharia, the black corals, so named because their calcareous skeletons are black. It was first described by the German zoologist and botanist Peter Simon Pallas in 1766, from a single specimen he received from near Marseilles in the Mediterranean Sea.

Description

A colony of Antipathes dichotoma can grow to a height of 1 m (3 ft 3 in) or more. It forms a sparsely branching structure with slender, flexible branches arranged irregularly around the trunk. The angle at which the branches project is variable but is often nearly 90°. The smaller branches bear four to six rows of short, smooth conical spines. The polyps are 2 to 2.4 mm (0.08 to 0.09 in) in diameter with three or four polyps per centimetre. They are arranged in a single series on the smallest branches and in multiple series on the largest ones. There is considerable variation in appearance of neighbouring colonies and in different parts of the same colony.[2]

Distribution

Antipathes dichotoma occurs in the Mediterranean Sea and parts of the temperate western Atlantic Ocean. Its range includes waters off the coast of Marseilles, the Gulf of Naples, the Tyrrhenian Sea, the Bay of Biscay and off the coast of Morocco. It is a deep water species and is found at depths of 200 to 300 m (656 to 984 ft). Where this species has been recorded as occurring in the Indo-Pacific region, it may have been misidentified.[2] The black coral growing off Hawaii, for example, has been reclassified as Antipathes griggi.[3]

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References

van der Land, Jacob (2015). "Antipathes dichotoma Pallas, 1766". WoRMS. World Register of Marine Species. Retrieved 2015-03-23.
Opresko, D. M. (2003). "Redescription of Antipathes dichotoma Pallas, 1766 (Cnidaria: Anthozoa: Antipatharia)". Zool. Med. Leiden. 77 (30): 481–493. ISSN 0024-0672.
Opresko, D. M. (2009). "A New Name for the Hawaiian Antipatharian Coral Formerly Known as Antipathes dichotoma (Cnidaria: Anthozoa: Antipatharia)1" (PDF). Pacific Science. 63 (2): 277–291. doi:10.2984/049.063.0209. hdl:10125/22761.

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[WoRMS-1] van der Land, Jacob (2015). "Antipathes dichotoma Pallas, 1766". WoRMS. World Register of Marine Species. Retrieved 2015-03-23.

[Opresko2003-2] Opresko, D. M. (2003). "Redescription of Antipathes dichotoma Pallas, 1766 (Cnidaria: Anthozoa: Antipatharia)". Zool. Med. Leiden. 77 (30): 481–493. ISSN 0024-0672.

[3] Opresko, D. M. (2009). "A New Name for the Hawaiian Antipatharian Coral Formerly Known as Antipathes dichotoma (Cnidaria: Anthozoa: Antipatharia)1" (PDF). Pacific Science. 63 (2): 277–291. doi:10.2984/049.063.0209. hdl:10125/22761.