palolo worm
/pəˈləʊləʊ/noun
1- a marine bristle worm which swarms in response to changes in light intensity, particularly that of the moon. The worm's posterior segments detach themselves and swim to the surface where the reproductive cells are released into the sea.矶沙蚕。
1.1
- Several species in Eunicidae and other families, in particular the Samoan palolo worm (Palola (or Eunice) viridis), which occurs on South Pacific reefs.矶沙蚕科及其他科中数种, 尤指萨摩亚矶沙蚕, 或称绿矶沙蚕（拉丁名Palola viridis或Eunice viridis）, 出没于南太平洋礁石上。
词源
late 19th cent.: palolo from Samoan or Tongan.