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・ Actinodaphne cuspidata
・ Actinodaphne ellipticbacca
・ Actinodaphne fragilis
・ Actinodaphne johorensis
・ Actinodaphne lanata
・ Actinodaphne lawsonii
・ Actinodaphne malaccensis
・ Actinodaphne menghaiensis
・ Actinodaphne molochina
・ Actinodaphne montana
・ Actinodaphne pruinosa
・ Actinodaphne quinqueflora
・ Actinodaphne salicina
・ Actinodaphne speciosa
・ Actinodaphne stenophylla
Actinodendron arboreum
・ Actinodium
・ Actinodoria argentea
・ Actinodoria cuprea
・ Actinoform cloud
・ Actinograph
・ Actinokentia
・ Actinokentia huerlimannii
・ Actinokineospora
・ Actinolema
・ Actinolepidae
・ Actinoleuca
・ Actinoleuca campbelli
・ Actinoleuca campbelli bountyensis
・ Actinoleuca campbelli macquariensis


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Actinodendron arboreum : ウィキペディア英語版
Actinodendron arboreum

''Actinodendron arboreum'', common name the tree anemone and hell's fire anemone, is a species of sea anemone in the family Actinodendronidae. It is native to the Indo-Pacific where it grows at depths of down to .〔 Most sea anemone species are harmless to humans, but ''A. arboreum'' is highly venomous and its sting can cause severe skin ulcers (as also suggested by its alternative name, hell's fire anemone).〔Haddad V., Jr., Lupi O., Lonza J.P., Tyring S.K. (2009). ''Tropical dermatology: Marine and aquatic dermatology.'' J. Am. Acad. Dermatol. 61: 733–750.〕〔Brush D.E. Marine Envenomations. In: Flomenbaum N.E., Goldfrank L.R., Hoffman R.S., Howland M.A., Lewin N.A., Nelson L.S., editors (2006). ''Goldfrank’s Toxicologic Emergencies.'' 8th. pp. 1629–1642. McGraw-Hill Medical, New York.〕
==Description==
The oral disc of ''Actinodendron arboreum'' has stripes that radiate from the mouth, and can reach a diameter of 10 to 20 centimetres. The column is elongated when expanded; it has a fairly small pedal disc and is thicker at the distal (upper) end. The tentacles are colourless, around 10 to 20 centimetres long and ramify fractally, being subdivided into branches and branchlets which makes the whole head of tentacles resemble a broccoli. The tentacles grow in whorls as the animal enlarges; the first whorl is six tentacles followed by further whorls of six, twelve and twenty-four tentacles. The first and third whorls of tentacles are endocoelic (set between the mesenteries in the column interior) and the second and fourth are attached marginally. The sea anemone is well-armed with cnidocytes which are of varying lengths, the ones in the central region of the tentacles being least variable.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Actinodendron arboreum」の詳細全文を読む



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