Bradabyssa papillata Hartman 1967

• Main Author: Salazar-Vallejo, Sergio I.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Polychaeta; Terebellida; Flabelligeridae; Bradabyssa; Bradabyssa papillata; Scotia Sea; Antarc*; Antarctica
• Online Access: https://zenodo.org/record/6051171; https://doi.org/10.5281/zenodo.6051171

Bradabyssa papillata Hartman, 1967 Figure 28 Bradabyssa papillata Hartman, 1967: 122 –123, Pl. 37, Fig. C.—Hartman 1978: 168, Fig. 20a–e (redescr.). Type material. Antarctica. Holotype (USNM 55544) and paratypes (USNM 55545), Scotia Sea, USNS Eltanin, Sta. 1070 (59°08' S, 36°57' W → 59°01' S, 36°50' W), 2815–2818 m, 9–10 Apr. 1964 (paratypes include a complete specimen cut into two sections, and an anterior fragment; complete 62(12+50) mm long, 10 mm wide, cephalic cage 2 mm long in anterior fragment, 53(8+45) chaetigers, regenerating posterior end). Description. Holotype (USNM 55544) complete, colourless, long, cylindrical, first four chaetigers swollen, progressively widening then body tapered, last six chaetigers swollen (Fig. 28A); 70 mm long, 6.5 mm wide, cephalic cage 1 mm long, 59 chaetigers. Body tubercles as 8 transverse series dorsally, alternating in size and position, ventrally 6 alternating series, all of similar size, without sediment cover (Fig. 28B). Cephalic hood not exposed in holotype; complete paratype with anterior end exposed (Fig. 28C). Cephalic hood short, margin smooth. Prostomium low lobe, eyes not seen. Caruncle well developed, pale, slightly eroded, reaching branchial plate margin, lateral ridges and median keel elevated. Palps thick, short, wider basally, not corrugated; palp bases low, pale. Lips damaged, lateral ones thicker; dorsal and ventral lips probably reduced. Branchiae missing, branchial scars on branchial plate, arranged into two lateral groups, each with over 20 scars; size relative to palps unknown. Nephridial lobes in branchial plate not seen. Cephalic cage poorly developed, chaetae broken, chaetiger 1 with notochaetae 2/3 as long as notochaetae of chaetiger 2. Chaetiger 1 involved in cephalic cage. Anterior dorsal margin of first chaetiger papillated, papillae minute. Chaetigers 1–3 of similar size, parapodia reduced in chaetiger 1. Chaetal transition from cephalic cage to body chaetae abrupt; chaetiger 2 with neurochaetae thicker. Gonopodial lobes in chaetiger 5 (Fig. ...