Anobothrus wilhelmi Schüller & Jirkov, 2013, n.sp.

• Main Authors: Schüller, Myriam, Jirkov, Igor A.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2013
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Terebellida; Ampharetidae; Anobothrus; Anobothrus wilhelmi; Weddell Sea; King George Island; Weddell; South Orkney Islands
• Online Access: https://zenodo.org/record/6152274; https://doi.org/10.5281/zenodo.6152274

Anobothrus wilhelmi n.sp. Figs 13–15 Holotype: ANDEEP III—st 16 - 10, EBS, 41 °07.55'S – 41 °07.02'S, 09° 55.94 'E – 09° 54.85 'E, South Africa / South Atlantic, 4720 m [ZMH- 26068]. Paratypes: ANDEEP III—st 16 - 10, EBS, 41 °07.55'S – 41 °07.02'S, 09° 55.94 'E – 09° 54.85 'E, South Africa / South Atlantic, 4720 m (2 specimens, both incomplete), st 21 - 7, EBS, 47 ° 39.87 'S – 47 ° 38.52 'S, 04° 15.79 'E – 04° 14.94 'E, South Africa / South Atlantic, 4574 m (1 specimen, incomplete), st 74 - 6, EBS, 71 ° 18.42 'S – 71 ° 18.33 'S, 13 ° 58.21 'W – 13 ° 57.65 'W, eastern Weddell Sea, 1047 m (8 specimens, 2 complete), st 78 - 9, EBS, 71 °09.52'S – 71 °09.34'S, 14 °00.76'W – 13 ° 58.85 'W, eastern Weddell Sea, 2182 m (1 specimen, incomplete), st 81 - 8, EBS, 70 ° 31.08 'S – 70 ° 32.23 'S, 14 ° 34.82 'W – 14 ° 34.90 'W, eastern Weddell Sea, 4419 m (7 specimens, 1 x SEM, 2 complete), st 133 - 2, EBS, 62 ° 46.73 'S – 62 ° 46.33 'S, 53 °02.57'W – 53 °04.14'W, central Weddell Sea, 1582 m (1 specimen, complete), st 150 - 6, EBS, 61 ° 49.13 'S – 61 ° 48.52 'S, 47 ° 27.51 'W – 47 ° 28.16 'W, South Orkney Islands, 1970 m (1 specimen, incomplete), st 154 - 9, EBS, 62 ° 32.52 'S – 62 ° 31.31 'S, 64 ° 39.45 'W – 64 ° 38.66 'W, King George Island, 3784 m (1 specimen, incomplete) [ZMH- 26069–26077]. Diagnosis: The species is easily recognized by the reduced size of the outermost pair of branchiae, giving the impression that the species only bears three pairs of branchiae, and the “hidden” position of the first notopodium directly posterior to the paleal base. Description: Holotype 16 mm long and 1.7 wide, incomplete with 5 AUs (Fig. 13 A–C). Complete paratypes (22 specimens, thereof 2 juveniles and 1 ovigerous) 2–10 mm long and about 0.1–1.2 mm wide, with 12–13 AUs when complete. Colour in ethanol white. Prostomium trilobed, middle lobe anteriorly rounded, without ridges (Fig. 14 A). Lower lip not enlarged. Nuchal organs and eyes present (Figs 13 A–C, 14 B). Buccal tentacles smooth. TS- 2 laterally only visible as a narrow lobe ...