New Japanese Record of Henneguya postexilis (Cnidaria: Myxobolidae) from Gills of Alien Channel Catfish Ictalurus punctatus (Siluriformes: Ictaluridae) in Japan

Masato Nitta; Takanori Ishikawa

doi:10.12782/specdiv.29.23

Abstract

Henneguya postexilis Minchew, 1977 (Cnidaria: Myxobolidae) is described as a novel record for Japan. It was found in the gills of non-native Ictalurus punctatus (Rafinesque, 1818) (Siluriformes: Ictaluridae), which were collected from the Omoi River, a tributary of the Tone River system in Tochigi Prefecture, central Honshu. This myxozoan species is native to North America and its discovery from Japan in this study is the second case reported from a non-native region. Until now, H. postexilis has only been observed in I. punctatus, suggesting that it is an introduced alien species in Japan, likely accompanying its host.

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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.

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