Bradabyssa tzetlini Salazar-Vallejo 2017, n. comb.
Bradabyssa tzetlini (Jirkov & Filippova in Jirkov, 2001) n. comb. Figure 44 Brada tzetlini Jirkov & Filippova, 2001: 356 –357, Figs 1–5.—Oug et al. 2011: 14, Figs 1–4 (reprod. from Jirkov & Filippova, 2001). Type material. Norwegian Sea. Syntype (HDMSU 21.07.1957), R.V. Sevastopol, Cruis...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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2017
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| Online Access: | https://zenodo.org/record/6051205 https://doi.org/10.5281/zenodo.6051205 |
| Summary: | Bradabyssa tzetlini (Jirkov & Filippova in Jirkov, 2001) n. comb. Figure 44 Brada tzetlini Jirkov & Filippova, 2001: 356 –357, Figs 1–5.—Oug et al. 2011: 14, Figs 1–4 (reprod. from Jirkov & Filippova, 2001). Type material. Norwegian Sea. Syntype (HDMSU 21.07.1957), R.V. Sevastopol, Cruise 5, Sta. 1116 (63.0° N, 02.25° E), 950 m, 21 Aug. 1957. Syntype (HDMSU 27.09.1958), dried-out, R.V. Sevastopol, Cruise 10, Sta. 1702 (66.38° N, 04.59° E), 1125 m, 27 Sep. 1958 (cephalic cage 1.5 mm long, 2 notochaetae and 2 neurochaetae in chaetiger 1). Syntype (HDMSU 15.10.1958), R.V. Sevastopol, Cruise 10, Sta. 1766 (65.13° N, 00.10° E), 730 m, 15 Oct. 1958, Agassiz trawl (two anterior fragments of mature females, partly dehydrated; oocytes about 125 µm). Syntype (HDMSU 4.11.1959), dried-out, R.V. Sevastopol, Cruise 15, Sta. 2444 (69.2° N, 00.08° E), 1000 m, 4 Nov. 1959 (parapodia with 4 notochaetae and 4 neurochaetae per ramus). Syntype (HDMSU 30.06.1978), R.V. Tunetz, Cruise 105, Sta. 16 (72.5° N, 00.14° E), 960 m, 30 Jun. 1978 (complete, slightly swollen anteriorly, 13 mm long, 3 mm wide, cephalic cage 2 mm long (5 notochaetae, 4 neurochaetae), 30 chaetigers, gonopodial lobes in chaetiger 5, each digitate with tip black, posterior end with anus dorsal, anus with a thick black muscular ring, without anal cirri. Notochaetae 4–5, in transverse series, neurochaetae 4–5, in oblique series; notochaetae about 1/3 as long as body width, 5 transverse series of dorsal papillae). Description. Better preserved syntype (HDMSU 21.07.1957) broken in two fragments; body whitish, papillae light brown (Fig. 44A), ventrally flat, blunt at both ends; 24(11+13) mm long, 4 mm wide, cephalic cage 1.8 mm long, 34(13+21) chaetigers. Papillae covered by fine sediment grains. Papillae very long, larger dorsally, arranged in 5–6 transverse series, shorter ventrally (Fig. 44B); posterior chaetigers with larger papillae, basally swollen, globular with long tip. Smaller syntype (HDMSU 30.06.1978) 13 mm long, 3 mm wide, cephalic cage 2 mm ... |
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