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''Leucosolenia'' is a genus of calcareous sponges belonging to the family Leucosoleniidae. Species of this genus usually appear as groups of curved vases, up to 2 cm long, each ending in an osculum. The overall shape is sometimes likened to a tiny bunch of bananas. They are most often observed in tide pools, clustered around the base of seaweeds or on rocks, and occur in a variety of colours, usually rather pale. Its canal system is of asconoic type. Characteristics of ''Leucosolenia'' sp. 1– It has no true tissues 2– Asymmetry 3– It has single body cavity 4– Sac-like bodies by many pores. Body consists of: 1– amoebocytes 2– choanocytes 3– spicules 4– spongocoel 5– osculum Functions of choanocytes are to create a flow of water and for reproduction. Functions of amoebocytes are to pick up food vacuoles, carry oxygen, maintain the structure of sponge and acts as an excretory system. ==References== *(Taxonomicon ) *(North East Atlantic Taxa ) 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「Leucosolenia」の詳細全文を読む スポンサード リンク
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