micraster的翻译，读音
英/'maikrəstə/
释义：
小蛸枕属
n. A genus of sea urchins, similar to Spatangus, abounding
in the chalk formation; -- from the starlike disposal of the ambulacral
furrows.
n. A genus of sea urchins, similar to Spatangus, abounding
in the chalk formation; -- from the starlike disposal of the ambulacral
furrows.