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Sagartia troglodytes : ウィキペディア英語版 | Sagartia troglodytes
''Sagartia troglodytes'' is a species of sea anemone in the family Sagartiidae, also known as the mud sagartia or the cave-dwelling anemone. ==Description== The base is anchored in holes in the rock and is a little wider than the column. This is smooth and firm, extending to a length several times its width, and covered in sticky suckers on its upper part. The usually flat oral disc is finely patterned and surrounded by four or five rings of numerous short tentacles, the longest ones being nearest the mouth. This is raised on a slight mound at the centre of the disc. The general colour is varying sombre shade of olive green or brown with vertical striations on the column. The radial striations on the oral disc are finely patterned in grey, white and black and the tentacles are translucent and banded in white and grey. At the base of each tentacle there is a distinctive black mark shaped like a Roman capital letter "B".〔(''Sagartia troglodytes'' ) Philip Henry Gosse. A history of the British sea-anemones and corals. Retrieved 2011-09-03.〕 Pieces of gravel and fragments of shell are often stuck to the upper part of the column. In size, the column can grow to a diameter of an inch (2.5cm) and a length of two inches (5cm) but most specimens are much smaller than this.〔John Barrett & C. M. Young (1958). Collins Pocket Guide to the Sea Shore. p. 59.〕
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「Sagartia troglodytes」の詳細全文を読む
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