Flabegraviera profunda Salazar-Vallejo 2012, n. sp.

• Main Author: Salazar-Vallejo, Sergio I.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Terebellida; Flabelligeridae; Flabegraviera; Flabegraviera profunda; Antarctic; Antarctic Ocean; Bird Peninsula; Cape Bird; Graham Land; Gravier; Inaccessible Island; McMurdo Sound; Pawson; Trinity Peninsula; Vestkapp; Weddell; Weddell Sea; Antarc*; Copepods
• Online Access: https://zenodo.org/record/5249548; https://doi.org/10.5281/zenodo.5249548

Flabegraviera profunda n. sp. Figure 19 Flabelligera mundata: Gravier 1911:110–112, Pl. 8, Fig. 87 (partim); Ehlers 1913:535–537, Pl. 41, Figs. 1–12 (partim); Benham 1927:129 (partim); Monro 1939:130 (partim) (non Gravier). Type material. Antarctic Ocean. Holotype (USNM-26611) and five paratypes (USNM unumb.), R/ V Eastwind 1966, Stat. 43B (62°08.7' S, 57°49' W), off North of Trinity Peninsula, Graham Land, 225–185 fathoms, Pawson & Squires coll., 11 Feb. 1966 (complete paratypes measured). Additional material. Two specimens (BMNH- 1928.2.20.195/96), McMurdo Sound, 5 mi N Inaccessible Island, R/V Terra Nova, Stat. 314, 222–241 fathoms, mud (damaged, flat, most chaetae broken; one with two parasitic copepods, one with a globose, slightly curved, 4.5 mm long egg mass, with a short peduncle). Two specimens (BMNH- 1928.2.29.198/199), off Cape Bird Peninsula, McMurdo Sound, R/V Terra Nova, Stat. 331, 250 fathoms, mud (damaged, depressed). One specimen (ZMH- 24498), dried-out, Cruise ANT XV-3, R/V Polarstern, Weddell Sea, Cape Norwegia, St. 48-220 (70°48.2' S, 10°41.5' W), 509 m, 19 Feb. 1998, B. Hilbig, coll. Two specimens (ZMH- 24499), dried-out, probably belonging to this species, Cruise ANT XV-3, R/V Polarstern, South of Vestkapp, St. 48-88 (73°28.5' S, 22°30.0' W), Weddell Sea, 1681 m, AGT, det & leg Brigitte Hilbig 4.2.1998. Description. Holotype complete (USNM-26611), slightly damaged with some broken notochaetal bundles (Fig. 19A); body fusiform, posteriorly tapering, slightly depressed; 70 mm long, 11.5 mm wide, cephalic cage 8 mm long (chaetae not exposed), 36 chaetigers. Tunic papillated, surface irregular (Fig. 19B) dorsally and ventrally, with a thin layer of fine sediment particles and epizoans; papillae long, distally fusiform, clavate, forming a sheath around chaetae; papillae thinner in notochaetal than in neurochaetal shafts. Cephalic hood not exposed. Anterior end observed in a paratype. Prostomium low cone; eyes not visible. Caruncle well developed, with two thick longitudinal keels and ...