Neanthes sp. 1

Gunton, Laetitia M., Kupriyanova, Elena K., Alvestad, Tom, Avery, Lynda, Blake, James A., Biriukova, Olga, Boeggemann, Markus, Borisova, Polina, Budaeva, Nataliya, Burghardt, Ingo, Capa, Maria, Georgieva, Magdalena N., Glasby, Christopher J., Hsueh, Pan-Wen, Hutchings, Pat, Jimi, Naoto, Kongsrud, Jon A., Langeneck, Joachim, Meissner, Karin, Murray, Anna, Nikolic, Mark, Paxton, Hannelore, Ramos, Dino, Schulze, Anja, Sobczyk, Robert, Watson, Charlotte, Wiklund, Helena, Wilson, Robin S., Zhadan, Anna & Zhang, Jinghuai, 2021, Annelids of the eastern Australian abyss collected by the 2017 RV ' Investigator' voyage, ZooKeys 1020, pp. 1-198 : 1

Neanthes sp. 1 Fig. 15C, D

Diagnosis.

Antennae ~ one quarter length of prostomium. Longest tentacular cirri extending back to chaetiger 5-6. Area I = 13; II ≥ 30; III ≥ 30; IV> 30; V absent; VI = 6; VII-VIII = 51. Prechaetal notopodial lobe present; approximately equal to length of dorsal notopodial ligule at least on anterior chaetigers (thus notopodium of three similar sized ligules/lobes); present throughout all chaetigers. Dorsal cirrus length ~ 1 × acicular notopodial ligule at chaetiger 10-20. Neuropodial prechaetal and postchaetal lobes absent. Neuropodial postchaetal lobe present, at least on some anterior chaetigers; projecting strongly beyond end of acicular ligule throughout all chaetigers. Ventral neuropodial ligule of anterior chaetigers ~ as long as acicular neuropodial ligule. Notopodia larger than neuropodia, dorsal notopodial ligule prominent triangular, largest structure in the parapodia.

Notopodial homogomph spinigers present. Neurochaetae: dorsal fascicle homogomph spinigers only (heterogomph falcigers absent). Neurochaetae, ventral fascicle: heterogomph spinigers absent. Homogomph spinigers present, heterogomph falcigers absent.

Records.

1 specimen. Suppl. material 1: op. 100 (NHMUK).

Figures

Figure 15. Nereididae A Neanthes cricognatha (op. 80) B Neanthes heteroculata, prostomium C Neanthes sp. 1, live specimen D Neanthes sp. 1, prostomium E Neanthes sp. 2, live specimen F Neanthes sp. 2, prostomium G Nereis sp. 1 H Nereis sp. 1, prostomium. Scale bars: 5 mm (A); 1 mm (B, D, F); 10 mm (C, E); 5 mm (G); 0.5 mm (H).