Isolda

Buccal tentacles smooth. Branchiae 4 pairs. Branchiae composed of 2 or more types, include both smooth and papillose/pennate pairs, none basally flanged. 2 pairs smooth and 2 pairs papillose. Paleae on segment 3 absent. Dorsal crest present, on either segments 6 or 7. Nuchal (post branchial) hooks on segment 4 present. Notopodia all similar. Notochaetae present from segment 5 or segment 6. Neuropodia present, tori of similar length throughout thorax. Segments 3–6 with fine acicular neurochaetae. Number of pairs of thoracic uncinigers 12, or 13. Abdominal notopodial rudiments present.

Description generated from: Hutchings, PA & Johnson, RT, 2003. Australian Ampharetidae (Polychaeta) DELTA database. In Wilson RS, Hutchings PA & Glasby CJ (eds) Polychaetes: Interactive Identification and Information Retrieval. CSIRO Publishing, Melbourne.

Additional references:
Fauchald, K. 1977. The polychaete worms. Definitions and keys to the orders, families and genera. Natural History Museum of Los Angeles County, Science Series 28, 1-188.

Australia. Distribution within Australia: South-eastern Australia, North-eastern Australia.

Insufficient data.