''Syllis'' is a genus of marine
bioluminescent
Bioluminescence is the production and emission of light by living organisms. It is a form of chemiluminescence. Bioluminescence occurs widely in marine vertebrates and invertebrates, as well as in some Fungus, fungi, microorganisms including ...
polychaete worms.
References
{{Taxonbar, from=Q2373926
Polychaete genera
Bioluminescent annelids
Syllidae