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Echinoida
Echinoida is an order of sea urchins in the class Echinoidea. They are distinguished from other sea urchins by simultaneously possessing both an un-sculpted test and a feeding lantern with large plates fused across the top of each pyramid. ==Taxonomy== Order Echinoida * family Echinidae Gray, 1825 * family Echinometridae Gray, 1825 * family Parasaleniidae * family Strongylocentrotidae Gregory, 1900
Image:Paracentrotus lividus profil.JPG|''Paracentrotus lividus'' (Echinidae) Image:Echinometra lucunter.jpg|''Echinometra lucunter'' (Echinometridae) Image:Urchinhand 300.jpg|''Strongylocentrotus franciscanus'' (Strongylocentrotidae)
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「Echinoida」の詳細全文を読む
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