著者
Yusuke Kamio Masato Nitta
出版者
The Japanese Society of Systematic Zoology
雑誌
Species Diversity (ISSN:13421670)
巻号頁・発行日
vol.28, no.2, pp.263-271, 2023-11-24 (Released:2023-11-24)
参考文献数
36

Microcotyle pacinkar n. sp. (Monogenea: Microcotylidae) is described from the gills of Sebastes taczanowskii Steindachner, 1880 (Scorpionfishes: Sebastidae) (Japanese name: Ezo-mebaru) collected from off Usujiri in Hokkaido, northern Japan in the North Pacific Ocean. The new species is morphologically most similar to M. ditrematis Yamaguti, 1940 in having an elongated body and an inverted pear-shaped genital atrium but differs from the congener in the arrangement of the spines in the genital atrium and the shapes of the anterolateral sclerites of the clamps. The phylogenetic trees for species of Microcotyle van Beneden and Hesse, 1863 based on the partial cytochrome c oxidase subunit I region were estimated using new sequences of M. pacinkar n. sp.; the new species formed a sister group with M. sebastis Goto, 1894.
著者
Yusuke Kamio Masato Nitta
出版者
The Japanese Society of Systematic Zoology
雑誌
Species Diversity (ISSN:13421670)
巻号頁・発行日
vol.27, no.1, pp.83-90, 2022-03-25 (Released:2022-03-25)
参考文献数
40
被引用文献数
2

Gemmaecaputia corrugata Tripathi, 1959 (Monogenea: Chauhaneidae), the type-species of Gemmaecaputia Tripathi, 1959, is redescribed from the gills of Sphyraena forsteri Cuvier, 1829 (Sphyraenidae) off Yomitan Town, Okinawa-jima island, Southern Japan, as a new country record. Sphyraena forsteri represents a new host record for this monogenean. The cox1 phylogenetic tree showed that G. corrugata and Pseudochauhanea macrorchis Lin, Liu, and Zhang, 2001 (Chauhaneidae) formed a sister group, but the 28S rDNA phylogenetic tree indicates that G. corrugata is nested in a clade comprised of Chauhaneidae and Protomicrocotylidae.