Spionida is an order of marine polychaete worms in the subclass Canalipalpata. Spionids are cosmopolitan and live in soft substrates in the littoral or neritic zones. ==Characteristics== Spionids have a single pair of flexible feeding tentacles with grooves, arising directly from the prostomium. The mouth has no jaws and the pharynx is partly ever...
Found on
http://en.wikipedia.org/wiki/Spionida
(from the article `annelid`) ...and abdomen; gills arise dorsally from thoracic region; size, minute to 40 cm; examples of genera: Scoloplos, Paraonis.Order SpionidaSedentary; at ...
Found on
http://www.britannica.com/eb/a-z/s/141
No exact match found.
