Corpus ID: 87716016

Studies on the Larval Development of Polydora ligni

  title={Studies on the Larval Development of Polydora ligni},
  author={Bi Xiang-dong},
This paper reported the larval development of Polydora ligni and the morphological characteristics of each developmental stage. The result shows about 4 days are required for eggs in the egg-bag to advance to 3-setiger pelagic larvae. The 14-setiger pelagic larvae begin to metamorphose 13 days after hatching and settle to the bottom of the water 19 days after they develop into the 21-setiger stage. Benthic larvae with 23-setiger are completely metamorphosed and show the adult tube-building… Expand
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