Echinoidea

常见例句

• Any of various thin, circular echinoderms of the class Echinoidea, especially Echinarachnius parma, of sandy ocean bottoms of the northern Atlantic and Pacific.
  沙钱，饼海胆：任一种海胆纲的瘦且圆的棘皮类动物，尤指外剑虱目，生活于北大西洋和太平洋沙质洋底
• "echinoid:an echinoderm of the class Echinoidea, which includes the sand dollars and sea urchins."
  "海胆:一种属于海胆纲的棘皮动物;包括沙钱和海胆.;"
返回 Echinoidea