Some nematodes from eels (Anguilliformes: Anguillidae) in Japan, with descriptions of two new species
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Some nematodes from eels (Anguilliformes: Anguillidae) in Japan, with descriptions of two new species Frantisˇek Moravec
. Kazuya Nagasawa . Toshihiro Hatama
Received: 1 July 2020 / Accepted: 30 August 2020 Ó Springer Nature B.V. 2020
Abstract Recent occasional examinations of two species of eels (Anguilliformes: Anguillidae) in Japan, the Japanese eel Anguilla japonica Temminck & Schlegel from central Japan and the giant mottled eel Anguilla marmorata Quoy & Gaimard from southern Japan, respectively, revealed the following four species of gastrointestinal parasitic nematodes: Cucullanus filiformis Yamaguti, 1935 (Cucullanidae) from A. japonica; Paraquimperia japonica n. sp. (Quimperiidae) from A. japonica (type-host) and A. marmorata; Heliconema anguillae Yamaguti, 1935 (Physalopteridae) from A. marmorata (new host
This article was registered in the Official Register of Zoological Nomenclature (ZooBank) as urn:lsid:zoobank.org:pub:D0694D29-95AB-4442-855E62252D106A97. This article was published as an Online First article on the online publication date shown on this paper. The article should be cited by using the doi number. This is the Version of Record.
record); and Spinitectus anguillae n. sp. (Cystidicolidae) from A. japonica (type-host) and A. marmorata. Specimens of all species are described based on light and scanning electron microscopical examinations. Paraquimperia japonica n. sp. is mainly characterised by the presence of a ventral sucker, spicules 210–231 lm long and by narrow cervical alae, whereas S. anguillae n. sp. by the number (29–36) of cuticular spines in the first ring, the length of the left spicule (351 lm) and the structure (without polar caps, filaments or lateral swellings), and the size of eggs (36–42 9 21–27 lm).
Introduction Although eels (Anguilla spp., Anguillidae) are important for Japanese fisheries and aquaculture, the knowledge of the parasite fauna of these hosts in Japan is still incomplete. Regarding the nematodes parasitising eels, to date a total of six nominal species,
This article is part of the Topical Collection Nematoda. F. Moravec (&) Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branisˇovska´ 31, 370 05 Cˇeske´ Budeˇjovice, Czech Republic e-mail: [email protected]
T. Hatama Inland Sea Research Division, Yamaguchi Prefectural Fisheries Research Center, Aio Futashima, Yamaguchi, Yamaguchi 754-0893, Japan
K. Nagasawa Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
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almost all specific parasites of eels, have been reported from Japan, mostly from the Japanese eel, Anguilla japonica Temminck & Schlegel: Anguillicola globiceps Yamaguti, 1935, Anguillicoloides crassus (Kuwahara, Niimi & Itagaki, 1974), Cucullanus filiformis Yamaguti, 1935, Heliconema anguillae Yamaguti, 1935, Rhabdochona angusticaudata Moravec & Nagasawa, 2018 and Philometroides anguillae (Ishii, 1916) (see Ishii, 1916, 1931; Yamaguti,
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