FIGURE 4. Austropolaria magnicirrata n. gen. n in A new genus and species of Polynoidae (Annelida, Polychaeta) from Pine Island Bay, Amundsen Sea, Southern Ocean-a region of high taxonomic novelty

FIGURE 4. Austropolaria magnicirrata n. gen. n. sp., holotype NHM 2012.92 (a) cirrophores—ci and elytraphores—el on segments 3–6, elytra and styles of dorsal cirri missing, damaged; (b) parapodium; (c) notochaeta, SEM image; (d) notchaetae; (e) neurochaetae. (Scales: A = 200 µm; B = 1mm; C = 20 µm; D = 125 µm; E = 50 µm). Footnotes: In the 'Material' section, complete specimens are indicated by 'cs'. Measurements: length (L) is measured from the anterior margin of the prostomium to the posterior border of the last segment (pharynx not included, if everted), width (W) is taken at the widest segment, including parapodia but excluding chaetae.