Bivaginogyrus obscurus (Monogenea: Dactylogyridae), a Gill Parasite of Two Cyprinids Pseudorasbora pumila pumila and Pseudorasbora parva, New to Japan

Masato Nitta; Kazuya Nagasawa

doi:10.12782/sd.19.2.167

Species Diversity

Online ISSN : 2189-7301
Print ISSN : 1342-1670

Bivaginogyrus obscurus (Monogenea: Dactylogyridae), a Gill Parasite of Two Cyprinids Pseudorasbora pumila pumila and Pseudorasbora parva, New to Japan

Masato Nitta, Kazuya Nagasawa

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Keywords: Bivaginogyrus obscurus, Monogenea, Pseudorasbora pumila pumila, Pseudorasbora parva, new country record, new host record, Japan

JOURNAL FREE ACCESS

2014 Volume 19 Issue 2 Pages 167-171

DOI https://doi.org/10.12782/sd.19.2.167

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Abstract

The dactylogyrid monogenean Bivaginogyrus obscurus (Gussev, 1955) is redescribed from the gills of two cyprinids, Pseudorasbora pumila pumila Miyadi, 1930 in Nagano Prefecture and P. parva (Temminck and Schlegel, 1846) in Ibaraki Prefecture. These are the first records of this parasite in Japan. Pseudorasbora p. pumila, which is endemic to central Japan, represents a new host record for B. obscurus. This monogenean is the first helminth and the second parasite discovered from wild P.p. pumila.

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