Flabelligera pergamentacea Ehlers 1913

• Main Author: Salazar-Vallejo, Sergio I.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Terebellida; Flabelligeridae; Flabelligera; Flabelligera pergamentacea; Antarctic; South Pole; Antarctic Ocean; Noto; Davis Sea; Möbius; Wilhelm II Land; Antarc*; Antarctica; South pole
• Online Access: https://zenodo.org/record/5249516; https://doi.org/10.5281/zenodo.5249516

Flabelligera pergamentacea Ehlers, 1913 Figure 11 Flabelligera pergamentacea Ehlers 1913:533–534, Pl. 40, Figs. 1–6; Günther 1912:13; Hartman 1966:39–41, Pl. 11, Figs. 7–9; Hartwich 1993:127. Type material. Antarctic Ocean. Antarctica. Syntypes of Flabelligera pergamentacea, all dried-out [ZMB-6774 (1 syntype), ZMB-5887 (many smaller syntypes)], off Kaiser-Wilhelm Land, Deutsche Tiefsee Expedition, R /V Valdivia, 14 Apr. 1902, 385 m, 17 Dec. 1902, Brutnetz, 385 m, Twist, 12 Jan. 1903, 380 m, 24 Jan. 1903, 380 m, 31 Jan. 1903, 380 m, 8 Feb. 1903, 350 m. Additional material. Antarctica. One specimen (ZMH-8592), dried-out, German South Pole Expedition 1901–1903, Wilhelm II Land, 31 Jan. 1903, 389 m. One specimen (ZIRAS-16343; used for description), near Cape Möbius, Davis Sea, Antarctica, XI Soviet Antarctic Expedition, R / V Ob, Station G, 43 m, rock, 28 Jan. 1966, Pushkin, diver, coll. Description. Non-type specimen (ZIRAS-16343), complete, white, truncate anteriorly, swollen medially, tapering posteriorly, with some parapodia previously removed (Fig. 11A); 21 mm long, 5 mm wide, cephalic cage 2 mm long, 26 chaetigers. Tunic thick, smooth, especially in swollen region, very pleated towards anterior (Fig. 11B–D) and posterior ends, without abundant sediment, but containing thin layer of very fine particles (Fig. 11E) making it shiny. Papillae very long, subdistally swollen, mucronate (most lost), forming well-defined noto- and neurochaetal lobes, without exposing individual papillae, unless eroded. Cephalic hood not exposed. Prostomium low cone; four dark eyes, anterior ones larger. Caruncle well developed, separating branchiae into two lateral groups (other details not observed to avoid further damage). Palps thick, pale, about as long as branchiae. Lateral lips well developed; ventral and dorsal lips not seen (to avoid further damage to the specimen). Branchiae in two lateral groups, each with branchiae arranged in rows, each group with about 40 filaments. Nephridial lobes not examined to avoid further damage. ...