Blar i forfatter "Nielsen, Jørgen G."
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Bidenichthys okamotoi, a new species of the bythitidae (Ophidiiformes, teleostei) from the koko seamount, central north pacific
Møller, Peter Daniel Rask; Schwarzhans, Werner W.; Lauridsen, Henrik; Nielsen, Jørgen G. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-08)Two specimens from the Koko Seamount (Koko Guyot), in the Hawaiian-Emperor seamount chain, Central North Pacific, caught in 2009 and 2010 are here described as a new species, Bidenichthys okamotoi. The taxonomy of the species in the genera Bidenichthys Barnard, 1934, and Fiordichthys Paulin, 1995, has been confusing due to the lost type of B. consorbrinus (Hutton, 1876) and the rarity of some ... -
A new species of the rare deep-sea genus Sciadonus Garman, 1899 (Teleostei, Bythitidae) from off Brazil, with a discussion of the evolution of troglomorphism and miniaturization in the aphyonid clade
de Melo, Marcelo Roberto Souto; Gomes, Amanda Alves; Møller, Peter Daniel Rask; Nielsen, Jørgen G. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-16)A new species of the rare, deep-sea genus Sciadonus Garman, 1899 (Bythitidae) is described based on two specimens obtained by the Brazilian R/V Alpha Crucis on the continental slope off São Paulo State, Southeastern Brazil, western South Atlantic. It differs from its congeners by the combination of the following characters: body pale lacking dark pigmentation except for on female claspers; a pair ... -
The Systematics of the ophidiid genus Spectrunculus (Teleostei, Ophidiiformes) revisited with description of a new species and resurrection of S. radcliffei
Uiblein, Franz; Møller, Peter Rask; Nielsen, Jørgen G. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09)After a preceding revision based on 87 specimens, the systematics of the abyssal giant cuskeel genus Spectrunculus Jordan and Thompson, 1914 has been revisited, based on the examination of 34 additional specimens and new otolith shape data of the holotype of S. grandis. From the latter, a clear distinction in otolith ostium width could be found in specimens from the Atlantic, Southern Indian ...