Standard Article

Echiura (Unsegmented Protostome Worms)

  1. José I Saiz-Salinas

Published Online: 19 APR 2001

DOI: 10.1038/npg.els.0001601

eLS

eLS

How to Cite

Saiz-Salinas, J. I. 2001. Echiura (Unsegmented Protostome Worms). eLS. .

Author Information

  1. Universidad del País Vasco, Bilbao, Spain

Publication History

  1. Published Online: 19 APR 2001

Abstract

Echiurans are unsegmented protostome worms with setae and a proboscis that cannot be retracted into the body.

Keywords:

  • worm;
  • minor phylum;
  • sexual dimorphism;
  • infauna;
  • phylogeny