Bradabyssa bransfieldia Salazar-Vallejo 2017, n. comb.

• Main Author: Salazar-Vallejo, Sergio I.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Terebellida; Flabelligeridae; Bradabyssa; Bradabyssa bransfieldia; Bransfield Strait; South Shetland Islands; Antarc*; Antarctica; Weddel Sea
• Online Access: https://zenodo.org/record/6051147; https://doi.org/10.5281/zenodo.6051147

Bradabyssa bransfieldia (Hartman, 1967) n. comb. Figures 14, 15 Brada bransfieldia Hartman, 1967: 120 –121, no figs.— Hartman 1978: 167 –168, Fig. 19a–c (redescr.).— Rozbaczylo 1985: 158.— Detinova 1993: 100. Ilyphagus cristatus Hartman, 1978: 173, Fig. 23a–c (new syn,). Type material. Antarctica: Four “ Holotype ” specimens of Brada bransfieldia, one herein designated as lectotype (USNM 55542) and twenty-three as paralectotypes (USNM 1422476), off the South Shetland Islands, USNS Eltanin, Sta. 138 (62°00' S, 61°09' W → 62°05' S, 61°08' W), 1437 m, 8 Aug. 1962. Holotype of Ilyphagus cristatus (USNM 46824), and paratype (USNM 46825), Weddel Sea, USCGC Glacier, Cruise 1, Sta. 1 (74°07' S, 39°38' W), 650 m, 6 Feb. 1968, J.S. Rankin, coll. (paratype damaged; 23 mm long, 2 mm wide (2.2 mm in widest region), cephalic cage 2.5 mm long, 35 chaetigers). Additional material. One anterior fragment (USNM 56659), off the South Shetland Islands, USNS Eltanin, Sta. 418 (62°39' S, 56°10' W), 426– 311 m, 2 Jan. 1963 (42 mm long, 3 mm wide, cephalic cage broken, 1.5 mm long, 34 chaetigers). Seven anterior and one posterior fragments (USNM 56660), damaged, Bransfield Strait, USNS Eltanin, Sta. 428 (62°41' S, 57°51' W), 662–1120 m, 5 Jan. 1963 (one anterior fragment of mature female, oocytes in varying sizes, larger ones 200 µm). Two anterior and one median fragment (USNM 56661) damaged, Bransfield Strait, USNS Eltanin, Sta. 432 (62°52' S, 59°27' W), 935– 884 m, 7 Jan. 1963 (anterior fragments 34–45 mm long, 2.0– 2.5 mm wide, cephalic cage 1.5–2.0 mm long, 32–34 chaetigers; gonopodial lobes in chaetiger 5). Description. Lectotype (USNM 55542) 46 mm long, 2 mm wide, cephalic cage 2 mm long, 66 chaetigers. Posterior body region darker, cylindrical, slightly expanded in median segments, tapered afterwards (Fig. 14A). Integument shiny, finely papillated, appears granulose. Body papillae minute, a few larger dorsal papillae, especially on anterior chaetigers, arranged in 4–5 transverse series, eroded in most specimens (Fig. 14B), better ...