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A new genus and species of deep demersal fish (Teleostei: Stephanoberycidae) from the tropical eastern North Atlantic

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A novel stephanoberycid genus and species, Abyssoberyx levisquamosus Merrett & Moore is reported from bottom‐trawl abyssal captures in 4490–4640 m depth. It has cycloid scales, differing from Stephanoberyx, Acanthochaenus and Hispidoberyx with spinoid scales; has 1–2 dorsal fin spines, differing from Acanthochaenus and Malacosarcus with 0, Gibberichthys with 5–6 and Hispidoberyx with 3–5 spines; has 5–7 + 14–15 gill rakers, differing from Stephanoberyx with 12–15 + 25–27 and Acanthochaenus and Malacosarcus with 8 + 17–20 gill rakers. Selected aspects of the osteology of A. levisquamosus are described, to confirm that it shares several features in common with other stephanoberycid genera and allied stephanoberycoids. Aspects of its biology and ecology are discussed.

Keywords: ecology; interfamilial comparisons; north‐east Atlantic; osteology; taxonomy

Document Type: Regular Paper


Affiliations: 1: Department of Zoology, The Natural History Museum, London, SW7 5BD, U.K. and 2: Florida Atlantic University, Wilkes Honors College, 5353 Parkside Dr., Jupiter, FL 33458. U.S.A.

Publication date: 2005-12-01

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