Macellicephala monroi Neal & Brasier & Wiklund 2018, sp. nov.
Macellicephala monroi sp. nov. (Figure 2. C, D and Figures 7, 8; Table 2.) Macellicephala sp. in Monro (1930): 47, p. 47: Fig. 10a, b [description]. Macellicephala mirabilis in Neal et al. (2017) [record]. Not Macellicephala mirabilis in Monro (1936): 100 [description]. Material examined. Holotype,...
| Main Authors: | , , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
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Zenodo
2018
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| Subjects: | |
| Online Access: | https://doi.org/10.5281/zenodo.5994479 http://treatment.plazi.org/id/03BDA104A328694CFF64FD1EFBDA24B5 |
| Summary: | Macellicephala monroi sp. nov. (Figure 2. C, D and Figures 7, 8; Table 2.) Macellicephala sp. in Monro (1930): 47, p. 47: Fig. 10a, b [description]. Macellicephala mirabilis in Neal et al. (2017) [record]. Not Macellicephala mirabilis in Monro (1936): 100 [description]. Material examined. Holotype, NHMUK.2018.53, South Georgia (Scotia Sea, Southern Ocean), cruise JR 144, station SG-EBS-3, collected on 05/04/2006, epibenthic sledge, epi-net, 53°35'51''S, 37°54'7.632''W, 503 m depth. Paratype, historic specimen of Monro (1930), BMNH 1930:10.8.440, South Georgia, Discovery, collected on 15/ 12/1926, 230– 250 m depth. DNA voucher, NHMUK.2018.75, Powell Basin, (Scotia Sea, Southern Ocean), cruise JR 144, station PB-EBS-3, collected on 18/03/2006, epibenthic sledge, epi-net, 60°59'24.72''S, 46°49' 54.516''W, 504 m depth. Additional material examined: Two specimens of Monro (1936), BMNH 1936: 2: 8: 488, South Georgia (mouth of Stromness Harbour), Discovery station 144, 155– 178 m depth. Description (based on holotype and paratype). Holotype complete and in overall good condition, with many body appendages still attached (Figs. 2D, 7A). Paratype, historic specimen of Monro (1930) (Figs. 2C, 7C), styles of median antenna, tentacular and dorsal cirri missing. Holotype 8 mm long, 2 mm wide excluding parapodia and 4 mm wide including parapodia; with 18 segments (segment 1 = tentacular segment); body dorsoventrally flattened, tapering anteriorly and posteriorly; colour in alcohol pale yellow with distinct pigmentation of purple and rusty brown stripes horizontally across dorsum observed in all specimens examined (Fig. 7A, C). Prostomium bilobed with anterior notch; prostomial lobes slightly pronounced, anteriorly tapering. Frontal filaments extending from tapering lobes short, medially inserted (Figs. 2C, D and 7B). Eyes absent. Facial tubercle indistinct, only present as enlarged inflated pad. Ceratophore of median antenna prominent, short, cylindrical, inserted medially on prostomium (near the base of anterior notch); ... |
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