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New Data on the Morphology and Distribution of Two Rare Species of Ophidiiformes: Diplacanthopoma japonicum (Bythitidae) and Pycnocraspedum microlepis (Neobythitidae)

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Abstract

The morphology and distribution of Diplacanthopoma japonicum and Pycnocraspedum microlepis have been specified. The species D. japonicum was recorded for the first time in the waters off Northwestern Australia. The possibility of synonymy of the nominal species D. japonicum and D. nigripinne is assumed. Five specimens of P. microlepis caught on the Kyushu-Palau Ridge make it possible to clarify the variability of some diagnostic characters of the species. A key has been compiled to identify species of the genus Pycnocraspedum.

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  1. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences (IEE RAS), Moscow, Russia

    A. M. Prokofiev

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  1. A. M. Prokofiev
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Translated by S. Avodkova

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Prokofiev, A.M. New Data on the Morphology and Distribution of Two Rare Species of Ophidiiformes: Diplacanthopoma japonicum (Bythitidae) and Pycnocraspedum microlepis (Neobythitidae). J. Ichthyol. 62, 1019–1024 (2022). https://doi.org/10.1134/S0032945222060224

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