Glycera cf. russa Grube, 1870

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

Glycera cf. russa Grube, 1870 Fig. 11F

Diagnosis.

Specimen 74 mm long, 6 mm wide. Prostomium with only nine rings. Postchaetal lobes of mid-parapodia both triangular and similar in length along most of the body, posteriorly more acute. Proboscideal papillae of two types, long conical ones (Fig. 11F ) and shorter oval ones, both with 6-10 transverse U-shaped ridges (and V-shaped apically). Jaw ailerons with triangular bases, not pointed nor deeply incised. Branchiae completely absent along body.

Remarks.

This specimen most resembles Glycera russa Grube, 1870. However, the prostomium consists of nine rings and the proboscideal papillae have only up to ten ridges, therefore, this may be a new species.

Records.

1 specimen. Suppl. material 1: op. 22 (AM).

Figures

Figure 11. Glyceridae and Goniadidae. A Glyceridae, Glycera sp. anterior body with everted pharynx, ventrolateral view (AM W. 52668) B Goniadidae, Bathyglycinde profunda, whole specimen (AM W. 52667) C Glyceridae, Glycera cf. capitata, digitiform proboscideal papilla, lateral view (AM W. 52672) D Goniadidae, Bathyglycinde profunda, anterior fragment (AM W. 52667) E Bathyglycinde profunda, proboscideal papillae of area II, posterior view (AM W. 52669) F Glyceridae, Glycera cf. russa, conical proboscideal papilla with eight ridges, posterior view (AM W. 52605). Scale bars: 1 mm (A, B, D); 10 µm (C); 50 µm (E); 10 µm (F).