Species Diversity
Online ISSN : 2189-7301
Print ISSN : 1342-1670
Morphological and Molecular Characteristics of Two Species of the Genus Rhadinorhynchus (Palaeacanthocephala: Echinorhynchida) from the Western Pacific
Yuki Kita Masato NittaHiroshi Kajihara
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ジャーナル オープンアクセス

2024 年 29 巻 1 号 p. 171-178

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Rhadinorhynchus Lühe, 1911 consists of acanthocephalans parasitizing migratory fishes. Of about 50 congeners currently assigned in this genus, 10 named and six unidentified species have previously been studied in molecular phylogenetic works; the intrageneric phylogeny and molecular diversity are thus still incompletely understood. In this study, we examined the phylogenetic positions of the two species R. seriolae (Yamaguti, 1963) and R. laterospinosus Amin, Heckmann, and Ha, 2011 based on the cytochrome c oxidase subunit I and 18S rRNA genes determined from material found in the intestines of the Pacific bluefin tuna Thunnus orientalis (Temminck and Schlegel, 1844) (new host) and the frigate tuna Auxis thazard (Lacepède, 1800), respectively. This is the first record of R. laterospinosus from Japan.

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© 2024 The Japanese Society of Systematic Zoology. This is an open access article distributed under a Creative Commons Attribution 4.0 License (CC BY, https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium or format, provided the original work is properly cited. The contents of this article are licensed under the CC BY 4.0, unless indicated otherwise in a credit line to the material.

This article is licensed under a Creative Commons [Attribution 4.0 International] license.
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