Bathyeliasona nigra is a deep-sea scale worm which occurs widely in the Indian, Pacific and Atlantic Oceans from a depth range of about 2,500-5,000m.Pettibone MH (1976) Revision of the genus Macellicephala McIntosh and the subfamily Macellicephalinae Hartmann-Schröder (Polychaeta: Polynoidae). Smithsonian Contributions to Zoology 229: 1–71. https://doi.org/10.5479/si.00810282.229.
Description Bathyeliasona nigra has 18 segments and 8 pairs of elytra, with slaty-black pigmentation. The anterior margin of the prostomium comprises a pair of acute anterior projections and the lateral antennae are absent. The notochaetae are about as thick as the neurochaetae and bidentate neurochaetae are absent.
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