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Neofibularia nolitangere
''Neofibularia nolitangere'', the touch-me-not sponge, is a species of demosponge in the family Desmacellidae. It is found in shallow waters in the Western Atlantic Ocean and the Caribbean Sea.
==Description==
''Neofibularia nolitangere'' is a massive sponge often growing to about wide and 30 centimetres tall but sometimes reaching in width. It has a central cavity or atrium with thick walls. It takes various forms in different areas of the Caribbean. In the Bahamas it usually occurs as a number of rounded lobes with a cup-shaped depression or cloaca on the apex of each. In these are several openings called osculi that slope diagonally to join the atrium and out of which water is propelled. Sometimes the sponge is encrusting, forming a shallow layer of tissue growing across the substrate. In other locations it grows as several concentric mounds with smaller cloacal openings or as large vase-type structures, single or in groups, sometimes fused together laterally. The general colour is deep brown or dark red. The inside surfaces of the cloaca are rougher than the outer surface of the sponge which is smooth but not shiny. The consistency of this sponge is compressible, fragile and crumbly, but handling it is unwise as it causes a smarting sensation and numbness of the skin. Repeated exposure to it can cause a more severe allergic reaction.〔(【引用サイトリンク】title=''Neofibularia nolitangere'' )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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