The Collaborative International Dictionary
Polygordius
Polygordius \Pol`y*gor"di*us\, n. [NL. See Poly-, and Gordius.] (Zo["o]l.) A genus of marine annelids, believed to be an ancient or ancestral type. It is remarkable for its simplicity of structure and want of parapodia. It is the type of the order Archiannelida, or Gymnotoma. See Loeven's larva.
Wiktionary
polygordius
n. (context zoology English) A marine annelids of genus (taxlink Polygordius genus noshow=1), believed to be an ancient or ancestral type. It is remarkable for its simplicity of structure and want of parapodia. It is the type of the order Archiannelida, or ''(taxlink Gymnotoma order noshow=1)''.