海胆
5.The nutritive and medicinal values of sea urchin are both high, and those of the sea urchin egg are highest.
6.A Study on Raft Farming Technique of Hemieentrotus pulcherrimus (A.Agassiz)
8.A Primary Study on Self-Pollution Pattern of Sea Urchin, Hemicentrotus pulcherrium (A.Agassiz)
9.Preliminary Study on Ecology of Purple Sea Urchin (?Strongylocentrotus nudus.A.Agassiz?) in the Miaodao Archipelago Waters
10.Sea urchins, which feed mainly on algae, live in environments that alternate between species-rich kelp forests and sea urchin-dominated "barrens."

