Demonax medius: Parasol Feather worm


In this video, the divers point out Demonax, be sure to watch for the rapid withdrawal into it’s slime tube when disturbed.


The diver’s finger points to the feathery tentacles-

Demonax medius , a slime tube worm is one of the Polychaetes in the Phylum Annelida. It is fairly common among the vast array of other invertebrates living sub-tidally at Race Rocks.

Domain Eukarya
Kingdom Animalia
Phylum Annelida
Class Polychaeta
Order Sabellida
Family Sabellide
Genus Demonax
Species medius
Common Name: Parasol Feather duster
This file is provided as part of a collaborative effort by the students, staff, faculty and volunteers of:
Lester B. Pearson College
Dec. 2002 Garry Fletcher