Meaning of echiuroid | Babel Free

Definitions

A worm of the order Echiuroidea.

Examples

“Descriptions of echiuroids based on external characters or on a very summary enumeration of a few internal features have⟳ made it difficult to determine⟳ the generic position of a number⟳ of described forms.”

“Despite the resemblances of echiuroids to annelids and to sipunculids, the embryological studies of Newby (1940) on Urechis, together with other evidence, seem to indicate⟳ that echiuroids are closer to annelids than they are to molluscs.”

“Generally echiuroids are sedentary, remaining in their holes or burrows and extending the proboscis to feed⟳.”

CEFR level