Functional and Evolutionary Implications of Opposed Bands, Big Mouths, and Extensive Oral Ciliation in Larval Opheliids and Echiurids (Annelida).

@article{Miner1999FunctionalAE,
  title={Functional and Evolutionary Implications of Opposed Bands, Big Mouths, and Extensive Oral Ciliation in Larval Opheliids and Echiurids (Annelida).},
  author={Benjamin G Miner and Eric D Sanford and Richard R. Strathmann and Bruno Pernet and Richard B. Emlet},
  journal={The Biological bulletin},
  year={1999},
  volume={197 1},
  pages={14-25}
}
Larvae of two annelids, the opheliid Armandia brevis and the echiurid Urechis caupo, captured small particles between opposed prototrochal and metatrochal ciliary bands and also captured large particles with wide ciliated mouths. The body volume of larval A. brevis increased more rapidly than the estimated maximum clearance rate as segments were added. Capture of larger particles by late-stage larvae may compensate for this potentially unfavorable allometry. The existence of larvae that use two… CONTINUE READING