Key:  Family Hesionidae

Taken primarily from  Kozloff, 1987, 1996 p. 128 (Copyright 1987, 1996, University of Washington Press.  Used in this web page by permission of University of Washington Press)

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Lower taxonomic level	Main Page	Alphabetic Index	Systematic Index	Glossary

1a	With 2 prostomial antennae	2
1b	With 3 prostomial antennae	3
2a	With 6 pairs of tentacular cirri	Micropodarke dubia
2b	With 8 pairs of tentacular cirri	Kefersteinia cirrata
3a	With 6 pairs of tentacular cirri (a dark brown species abundant intertidally, especially on muddy sand where there are growths of Ulva, Enteromorpha, and other algae)	Ophiodromus pugettensis
3b	With 8 pairs of tentacular cirri	Podarkeopsis brevipalpa

  Micropodarke dubia
  Ophiodromus pugettensis