Eumida cf. longicirrata Hartmann-Schroeder , 1975

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

Eumida cf. longicirrata Hartmann-Schroeder, 1975 Fig. 21B, C

Diagnosis.

Broadly triangular prostomium (Fig. 21C ) with three antennae and two palps. Antennae and palps digitiform. Eyes absent. Four pairs of cylindrical tentacular cirri on anterior three segments (1-2-1 arrangement). First tentacular segment dorsally reduced. Everted proboscis funnel-shaped with digitiform terminal papillae. Parapodia uniramous. Chaetae present from segment 2. Dorsal cirri lanceolate, ventral cirri conical. Raised postero-dorsal semi-circular structures not as distinct as in the description of Eibye-Jacobsen (1991). Colour in ethanol pale yellow.

Remarks.

Current specimens closely resemble the redescription of Eumida longicirrata ( Eibye-Jacobsen 1991), although the raised postero-dorsal semi-circular structures were not as distinct, and in some cases not visible at all. Similar observations were noted by Ravara et al. (2017b) for E. longicirrata collected from the Gulf of Cadiz. Considering that the recorded distribution of E. longicirrata appears to be limited to the margins of the Iberian Peninsula ( Ravara et al. 2017b), we tentatively regard this as a different species until further investigation.

Records.

23 specimens. Suppl. material 1: op. 100 (NHMUK).

Figures

Figure 21. Phyllodocidae A Eumida cf. angolensis B Eumida cf. longicirrata, live specimen C Eumida cf. longicirrata, prostomium D? Pseudomystides sp., prostomium E Phyllodocidae sp. (op. 79) F Phyllodocidae sp. (AM W. 52332). Scale bars: 1 mm (A, B, E, F); 0.5 mm (C); 100 µm (D).