单词	ophiuroid
释义	ophiuroid /ɔfɪˈ(j)ʊərɔɪd / Zoology noun An echinoderm of the class Ophiuroidea, which comprises the brittlestars.Hans perhaps is best known for his work on crinoids and ophiuroids, but he has many titles on asteroids, echinoids, and holothurians as well.... Unlike the situation with gastropods, sublethal damage is relatively easy to interpret in ophiuroids and crinoids. Some, like many starfish, are predators; holothurians, sand dollars, and ophiuroids often feed on detritus; crinoids are filter-feeders; sea urchins scrape algae from rocks. adjective Relating to or denoting ophiuroids.Alternative phylogenetic trees were compared excluding the ophiuroid data set.... A few ophiuroid species can even tolerate brackish water, an ability otherwise almost unknown among echinoderms. However, the placement of the ophiuroid branch with respect to the other echinoderms is still unresolved.
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