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Echiuroidea is an order of segmented worms. There are 183 species of Echiuroidea, in 40 genera and 5 families. They are downward conveyors. They are facultatively mobile animals.

  • URI: http://polytraits.lifewatchgreece.eu/terms/RW_DC
  • Definition: Downward conveyors exhibit a feeding strategy opposite to that of upward conveyors. Vertically oriented head-up feeders actively select and ingest particles at the surface and egest these non-locally as faeces in deeper sediment strata
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EOL has data for 7 attributes, including:

Echiuroidea includes 2 children: