Pholoe sp.

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

Pholoe sp. Fig. 29E

Diagnosis.

Many small specimens ≤ 4 mm in length and 1 mm in width, easily fragmented, <32 chaetigers. Body compressed dorsolaterally. Dorsal cirri and branchiae absent. Prostomium oval, bilobed anteriorly, eyes absent. Median antenna present on ceratophore in anterior notch, small lateral antennae present between median antenna and tentaculophores, slightly ventral to median antenna ceratophore (often hidden). Palps stout, ventrolateral to tentaculophores, at least 2.5 × longer than tentaculophore cirri. Tentaculophores achaetous, with dorsal and ventral cirri, with styles similar to median antenna, digitiform, tapering. Parapodia biramous, notopodia much shorter than neuropodia. Neuropodia with stylodes. Notochaetae thin, capillary, spinulose, curved. Neurochaetae all falcigers with medium-length finely-spinulose blades and with fine serrations subdistally on shafts. Elytra delicate, without concentric rings, with few simple elongate papillae submarginally and on surface, becoming longer on more posterior elytra, elytra covering dorsum.

Remarks.

There are currently five described species of Pholoe lacking eyes. This species resembles P. petersenae Ravara & Cunha, 2016, though that species was described from the NE Atlantic (Gulf of Cadiz) in depths of 1000-2000 m, and also P. courtneyae Blake, 1995, which was described from the Californian continental slope in depths of 900-1880 m; these three species are anoculate, and lateral antennae are present, though small and often not visible dorsally.

Records.

312 specimens. Suppl. material 1: ops. 9, 16, 23, 31, 33, 40, 42, 45, 54, 55, 66, 79, 89, 96, 98, 110.

Figures

Figure 29. Sigalionidae A Leanira sp. nov. (AM W. 52617) B Leanira sp. nov. (AM W. 52620) C Neoleanira sp. nov. (AM W. 49501) D Neoleanira sp. nov. (AM W. 52612) E Pholoe sp. (AM W. 52160) F Pholoides sp. (AM W. 52616). Scale bars: 1 mm (A, B, E); 1 cm (C, D); 0.1 mm (F).