Paramphinome australis Monro 1930

• Main Authors: Georgieva, Magdalena N., Wiklund, Helena, Ramos, Dino A., Neal, Lenka, Glasby, Christopher J., Gunton, Laetitia M.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2023
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Amphinomida; Amphinomidae; Paramphinome; Paramphinome australis; South Orkney Islands; Southern Ocean
• Online Access: https://doi.org/10.5281/zenodo.10997978; http://treatment.plazi.org/id/E679B631FFB7FF9C84B0F947FBFBF83A

Paramphinome cf. australis Monro, 1930 Fig. 5 Paramphinome cf. australis Gunton et al., 2021: 21–22, fig. 5C,D Material examined . NHMUKANEA 2022.435, AM W.52195, AMW.52197, IN2017_V03_100; 9 June 2017; off Byron Bay, NSW, Australia, beam trawl, start: 28.05°S 154.08°E, 999 m, end: 28.10°S 154.08°E, 1013 m. DNA vouchers: NHMUKANEA 2022.435 (COI, 16S, 18S), AM W.52195 (16S), WF_ AMP _2 (COI, 16S), AMW.52197 (16S). Description . Descriptions based on AM W.52197. Body shape elongate (Fig. 5A), specimen complete, around 4 mm length. Eyes absent. Prostomium rounded. One median unpaired antenna (Fig. 5B), pair of lateral antennae. One or two pairs of strongly curved hooks on chaetiger 1 (Fig. 5C) depending on body size (smaller individualsone, larger individuals two). Arborescent branchiae beginning on chaetiger 4 to chaetiger 7 (Fig. 5D). Parapodia biramous. Notochaetae: capillary chaetae with step-like serrations and smooth unadorned spines. Notoacicula two per fascicle. Neurochaetae long thin capillaries with basal spurs, long thin capillaries no basal spurs, subdistally inflated bifurcate chaetae serrated prongs. Neuroacicula two per fascicle (Fig. 5E). Pygidium unadorned. Distribution . IN2017_V03, Station 100. Pilot whale carcass, off Byron Bay, New South Wales, Australia in 999–1013 m. Remarks . Specimen AMW.52197 closely resembles Paramphinome australis Monro, 1930. Are-description of Paramphinome australis is given in Böggemann (2009). The current specimen differs from Paramphinome australis in the number of strongly curved hooks numbering 1–2 not 2–3 as in Böggemann (2009). There was nodifference in the thickness of notochaetae spines (according to Böggemann (2009) and Kudenov (1993) and fewer notoacicula and neuroacicula per fascicle werealsoobserved inour material. The typelocality of Paramphinome australis is the Southern Ocean off the South Orkney Islands at 244–344 m depth, while Böggemann’s (2009) re-description was based on samples from the Angola Basin at 3945–3992 m depth. The author states that the ...