1a. Segments of the trunk with fleshy, parapodial lobes with 1 or more aciculae at least in posterior segments.
Step 3. 2
1b. Parapodial lobes much smaller or absent, without aciculae.
Step 35. 34
67 possible taxa remaining show common names
- Acrocirridae
- Alciopa reynaudii
- Ampharetidae
- Amphinomidae
- Aphroditidae
- Apistobranchidae
- Arenicolidae
- Calamyzas amphictenicola
- Capitellidae
- Chaetopteridae
- Cirratulidae
- Cossura longocirrata
- Ctenodrilinae
- Diurodrilidae
- Dorvilleidae
- Drilonereis
- Dysponetus caecus
- Dysponetus paleophorus
- Eunicidae
- Euphrosinidae
- Flabelligeridae
- Glyceridae
- Goniadidae
- Haematocleptes terebellidis
- Hesioninae
- Histriobdellidae
- Lumbrineridae
- Magelonidae
- Maldanidae
- Microphthalminae
- Nephtyidae
- Nereididae
- Nerillidae
- Onuphidae
- Opheliinae
- Ophelininae
- Orbiniidae
- Owenia fusiformis
- Paleaonotus debilis
- Panthalis oerstedi
- Paraonidae
- Parergodrilidae
- Pectinariidae
- Pholoidae
- Phyllodocidae
- Pisione remota
- Poecilochaetus serpens
- Polygordiidae
- Polynoidae
- Protodrilidae
- Protodriloididae
- Psammodrilidae
- Sabellariidae
- Sabellidae
- Scalibregmatidae
- Serpulidae
- Sigalionidae
- Sphaerodoridae
- Spinther arcticus
- Spionidae
- Sternaspis scutata
- Syllidae
- Synelmis klatti
- Terebellidae
- Travisia forbesii
- Trichobranchidae
- Trochochaeta multisetosa
Decision path