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''Culcita schmideliana'', commonly known as the spiny cushion star, is a species of pin-cushion star. It has a variety of base colors and often patches of a different color. It is pentagonal in shape and lives in the tropical Indo-Pacific. This species is sometimes kept by hobby aquarists. ==Description== ''Culcita schmideliana'' is a roughly pentagonal starfish with a leathery surface and an inflated appearance. It is subglobose in shape with a very convex aboral (upper) surface and flat base. The aboral surface is scattered with small conical spines and the oral (under) surface has small granulations and is clad in large conical tubercles, those nearest the ambulacral grooves and the margin being ovate in cross section and the largest. This starfish varies in color but often has a greyish background with small pink patches mostly adjacent to black tubercles. The madreporite is usually an orangeish color. This starfish often has several commensal animals in its body cavity or on its surface. A carapid fish is usually to be found living in its stomach and sometimes the polychaete worm ''Gastrolepidia clavigera'' crawls over its surface. There is also often a tiny commensal shrimp ''Periclimenes soror'' hiding almost invisibly on its aboral surface.〔 File:Schmedelian pin-cushion sea star.jpg|Specimen in Maldives File:Culcita schmideliana Maldives.JPG|''idem'' File:Periclimenes soror on Culcita schmideliana.JPG|A symbiotic shrimp (''Periclimenes soror'') File:Culcita schmideliana stomach.JPG|Underside, with everted stomach for feeding. 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「Culcita schmideliana」の詳細全文を読む スポンサード リンク
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