Gephyrea


Also found in: Dictionary, Encyclopedia, Wikipedia.

Gephyrea

a class of large, marine ANNELID worms that possess little or no segmentation and few or no chaetae, e.g. Echiuroidea and Sipunculoidea.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005