A new genus for Diplectanum setosum Nagibina, 1976 (Monogenea: Dipletanidae), a parasite of Psammoperca waigiensis (Cuvier) (Perciformes: Latidae) from Okinawa-jima Island, Japan
The diplectanid monogenean Diplectanum setosum Nagibina, 1976 is redescribed based on newly collected specimens from Psammoperca waigiensis (Cuvier) (Perciformes: Latidae) from the Okinawa-jima Islands, Okinawa Prefecture, Japan, and transferred to a new genus, Latiphagum n. g., herein proposed based on the results of the morphological and molecular analysis. This new genus is closely related with Pseudorhabdosynochus Yamaguti, 1958, Echinoplectanum Justine & Euzet, 2006, and Laticola Yang, Kritsky, Sun, Zhang, Shi, & Agrawal, 2006, but distinguished from them by the male copulatory organ (MCO) of the new genus devoid of cirrus, the tube supported both sides by two plates with long bristles, and the presence of the prostatic reservoir in the expanded base of the MCO.
Takuya Sato (Kobe University) and Takeshi Sasaki (University Museum Fujukan, University of the Ryukyus) are thanked for providing laboratory facilities.
This study was supported by JSPS KAKENHI grant (no. 18J00466).
Compliance with ethical standards
Conflict of interest
The author declares that he has no conflict of interest.
All applicable institutional, national and international guidelines for the care and use of animals were followed.
- Hatooka, K. (2013). Latidae. In: Nakabo, T. (Ed.) Fishes of Japan with Pictorial Keys to the Species, 3rd Edition. Hadano: Tokai University Press, pp. 743, 1956 (In Japanese).Google Scholar
- Justine, J.-L., & Euzet, L. (2006). Diplectanids (Monogenea) parasitic on the gills of the coralgroupers Plectropomus laevis and P. leopardus (Perciformes, Serranidae) off New Caledonia, with the description of five new species and the erection of Echinoplectanum n. g. Systematic Parasitology,64, 147–172.CrossRefGoogle Scholar
- Kritsky, D. C., & Diggles, B. K. (2015). Acanthocercodes n. g. (Monogenoidea: Diplectanidae) for species parasitising threadfins (Perciformes: Polynemidae), with description of Acanthocercodes bullardi n. sp. from the Atlantic threadfin Polydactylus octonemus (Girard) and reassignment of three species of Diplectanum Monticelli, 1903 from the Indo-Pacific Ocean. Systematic Parasitology,91, 191–201.CrossRefGoogle Scholar
- Liang, K. S., & Leong, T. S. (1991). A redescription of Pseudorhabdosynochus latesi (Tripathi, 1955) and description of Diplectanum penangi n. sp. (Monogenea: Diplectanidae) from Lates calcarifer cultured in floating cages in floating cages in Malaysia and Thailand. Journal of Bioscience,2, 77–84.Google Scholar
- Nagibina, L. F. (1976). New species of the genus Diplectanum (Monogenoidea, Diplectanidae). Trudy Biologo-Pochvennogo Instituta, Novaya Seriya, 35, 89–96 (In Russian).Google Scholar
- Nitta, M., & Nagasawa, K. (2017). A new species of Furcohaptor Bijukumar & Kearn, 1996 (Monogenea: Diplectanidae) parasitic on Cynoglossus robustus Günther (Pleuronectiformes: Cynoglossidae) in the Seto Inland Sea, Japan, with comments on its systematic position and an amended generic diagnosis of Furcohaptor. Systematic Parasitology,94, 907–913.CrossRefGoogle Scholar
- Rambaut, A., & Drummond, A. J. (2013). Tracer v 1.6. Available at http://tree.bio.ed.ac.uk/software/tracer/. Accessed 20 June 2017.Google Scholar
- Yang, T., Kritsky, D. C., Sun, Y., Zhang, J., Shi, S., & Agrawal, N. (2006). Diplectanids infesting the gills of the barramundi Lates calcarifer (Bloch) (Perciformes: Centropomidae), with the proposal of Laticola n. g. (Monogenoidea: Diplectanidae). Systematic Parasitology,63, 125–139.CrossRefGoogle Scholar
- Zhang, J., Yang, T., & Liu, L. (2001). Monogeneans of Chinese Marine Fishes. Beijing: Agriculture Press, 400 pp (In Chinese).Google Scholar