Bradabyssa antarctica Salazar-Vallejo 2017, n. comb.

• Main Author: Salazar-Vallejo, Sergio I.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Terebellida; Flabelligeridae; Bradabyssa; Bradabyssa antarctica; Antarc*; Antarctica; antarcticus
• Online Access: https://doi.org/10.5281/zenodo.6051145; http://treatment.plazi.org/id/038B87B6347BFFB31AB7F93FFD96FC96

Bradabyssa antarctica (Hartman, 1978) n. comb. Figure 13 Ilyphagus antarcticus Hartman, 1978: 170 –173, Fig. 22a–e. Type material . Antarctica. Holotype (USNM 46823), USCGC Glacier, Cruise 1, Station 1 (74°07' S, 39°39' W), 650 m, 6 Feb. 1968, J.S. Rankin coll. Description . Holotype (USNM 46823) complete, pale, cylindrical, tapered towards both ends (Fig. 13A); 14 mm long, 1 mm wide, cephalic cage 1.5 mm long, 46 chaetigers, regenerating posteriorly (some parapodia previously removed). Body papillae abundant, rounded short, filiform, capitate, about 6 series per segment in anterior segments, rounded ones less abundant in median and posterior segments (2–3 series per segment), some adherent sediment grains on anterior chaetigers. Anterior end not exposed; not dissected to prevent further damage. Cephalic cage present, chaetae about as long as 1/10 total length, or 1.5 times longer than body width. Only chaetiger 1 involved in cephalic cage. Cephalic cage chaetae arranged dorsolaterally in short series. Notochaetae and neurochaetae barely separate; 5–6 notochaetae, 3–4 neurochaetae. Anterior dorsal margin of first chaetiger papillated, slightly depressed; anterior chaetigers without especially long papillae. Chaetigers 1–3 of similar length (Fig. 13A, B). Chaetal transition from cephalic cage to body chaetae abrupt; aristate neurospines present from chaetiger 2. Gonopodial lobes not seen. Parapodia lateral, slightly developed (Fig. 13D); 3 large papillae between rami. Median neuropodia ventrolateral. Notopodia and neuropodia close to each other. Notopodia reduced, notochaetae emerge from the body wall; all notochaetae multiarticulate capillaries. Neuropodia better developed, lateral foliose outgrowths, with a few papillae. Median notochaetae arranged in tufts, multiarticulate capillaries, articles medium-sized basally, long medially and distally; 2–3 in anterior and median chaetigers, 4–5 in posterior chaetigers, 2/3 as long as body width. Neurochaetae aristate spines from chaetiger 2, arranged in transverse ...