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Of Fishes and Invertebrates of the Seto Inland Sea, Japan (1935-2011), with a New Locality Record for Caligus Macarovi (Caligidae)

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Of Fishes and Invertebrates of the Seto Inland Sea, Japan (1935-2011), with a New Locality Record for Caligus Macarovi (Caligidae) 広島大学総合博物館研究報告 Bulletin of the Hiroshima University Museum 3: 113-128, December 25, 2011 資料 DDataata A Checklist of the Parasitic Copepods (Crustacea) of Fishes and Invertebrates of the Seto Inland Sea, Japan (1935-2011), with a New Locality Record for Caligus macarovi (Caligidae) Kazuya NAGASAWA1 Abstract: Information on the parasitic copepods of fi shes and invertebrates from the Seto Inland Sea published between 1935 and 2011 is assembled as Parasite-Host and Host-Parasite lists. A total of 88 nominal species (78 from fi shes and 10 from invertebrates) of the following families have been reported: Anthessiidae (2 species), Bomolochidae (7), Chondracanthidae (7), Ergasilidae (3), Lichomolgidae (2), Mantridae (1), Myicolidae (1), Mytilicolidae (2), Notodelphyidae (2), Taeniacanthidae (14), Umazuracolidae (1), Caligidae (15), Hatschekiidae (9), Kroyeriidae (1), Lernaeopodidae (9), Lernanthropidae (7), Pandaridae (1), Pennellidae (2), Pseudocycnidae (1), and Pseudohatschekiidae (1). Information on the parasitic copepods not identified to species level is also given, including the species of Philichthyidae, Taeniacanthidae, and Pennellidae. Keywords: Checklist, Parasitic copepods, Seto Inland Sea Ⅰ. Introduction between 1935 and 2011. These 88 species belong to 20 The Seto Inland Sea (SIS) (Fig. 1) is located in western families: Anthessiidae (2 species), Bomolochidae (7), Japan and bounded by three large islands (Honshu, Chondracanthidae (7), Ergasilidae (3), Lichomolgidae Shikoku, and Kyushu). The surface area of the sea is (2), Mantridae (1), Myicolidae (1), Mytilicolidae (2), approximately 20 × 103 km2 (450 km long and 5-50 km Notodelphyidae (2), Taeniacanthidae (14), wide) with 37 m in average depth. It is connected to the Umazuracolidae (1), Caligidae (15), Hatschekiidae (9), North Pacific Ocean through two channels, the Kii Kroyeriidae (1), Lernaeopodidae (9), Lernanthropidae (7), Channel (Fig. 1A) and the Bungo Channel (Fig. 1B), and Pandaridae (1), Pennellidae (2), Pseudocycnidae (1), and to the Sea of Japan through the Kanmon Strait (Fig. 1C). Pseudohatschekiidae (1). Information on the parasitic As of 2011, we have a 76-year history of research copepods not identified to species level is also given, on the parasitic copepods of fishes and invertebrates in including the species of Philichthyidae, Taeniacanthidae, the Seto Inland Sea. In 1935, Takamochi Mori reported and Pennellidae. the mytilicolid copepod Mytilicola orientalis for the first In this checklist, information on the parasitic time from this sea (Mori, 1935). Subsequently, based on copepods is assembled as Parasite-Host and Host-Parasite the papers published from 1935 to 1983, Inaba (1988) lists. In the Parasite-Host List, the classification of listed 37 species of parasitic copepods (34 species from Copepoda proposed by Boxshall and Halsey (2004) is fi shes and 4 species from invertebrates) in the monograph followed. For each species of parasitic copepod, the follow- entitled “Fauna and Flora of the Seto Inland Sea,” but ing information is provided: 1) the current scientific the list was incomplete due to an insufficient literature name, including the author(s) and date, followed by any search. Moreover, since the 1980s many papers have recognized synonym(s) used in establishing the record(s) been published on the parasitic copepods from the Seto in the Seto Inland Sea. For the species listed by Inaba Inland Sea. Therefore, the present checklist is compiled (1988), an asterisk (*) is added immediately after the to supplement Inaba’s list, containing information on 88 date of the scientifi c name where applicable; 2) Host(s), nominal species of parasitic copepods (78 species from in which currently accepted scientifi c names are given: fishes and 10 species from invertebrates) recorded for fish hosts, the names recommended by Froese and 1 Graduate School of Biosphere Science, Hiroshima University 114 Kazuya NAGASAWA Seto Inland Sea Japan 2 SSeaea ooff 3 Japan 4 1 5 9 11 C 10 34ºN 8 6 A 7 B North Pacific Ocean 0 100 km 131131º E1 13333º E 135135ºE Fig. 1 A map of the Seto Inland Sea (SIS), western Japan. A, a boundary in the Kii Channel between SIS and the North Pacifi c Ocean (NPO); B, a boundary in the Bungo Channel between SIS and NPO; C, a boundary near the Kanmon Strait between SIS and the Sea of Japan. The Seto Insland Sea is surrounded by eleven prefectures (1, Osaka; 2, Hyogo; 3, Okayama; 4, Hiroshima; 5, Yamaguchi; 6, Fukuoka; 7, Oita; 8, Ehime; 9, Kagawa; 10, Tokushima; 11, Wakayama), and prefectural boundaries are shown by dotted lines. Pauly (2011) are used. The scientific names used in Ⅱ. Parasite-Host List original reports are shown in parentheses. A Japanese Subclass Copepoda Milne Edwards, 1830 common name is also given in Japanese in parentheses Order Cyclopoida Burmeister, 1834 for each host species after its scientific name; 3) the Family Anthessiidae Humes, 1986 site(s) of occurrence of the parasite on or in its host(s); 4) Record(s), in which the authors responsible for the Anthessius graciliunguis Do and Kajihara, 1984 records are listed in chronological order. Each reference Host and site: Mytilus galloprovincialis (as M. edulis is followed by the locality or localities given in two galloprovincialis, ムラサキイガイ), mantle cavity parts, fi rst the prefecture(s) (Fig. 1) and then the detailed Records: Do and Kajihara 1984 (Hyogo: Himeji Harbor); collection locality or localities from which the parasite Do and Kajihara 1986 (Hyogo: Himeji Harbor) was reported; and 5) Remarks, where applicable explanatory comments are offered on nomenclature and Panaietes yamagutii Izawa, 1976 notes such as questionable host identifications in the Syn.: Panaietes incamerata Stebbing, 1900 original reports. In the Host-Parasite List, the genera and Host and sites: Turbo (Bacillus) cornutus (サザエ), species of hosts are listed in alphabetical order within mouth cavity, esophagus each of the higher taxa of animals (Bivalvia, Gastropoda, Records: Anonymous 1967 (unspecified locality); Ascidiacea, Elasmobranchii, and Actinopterygii). After Nagasawa 2007 (unspecifi ed locality) the name of each host species, parasitic copepod(s) is (are) listed in systematic order shown in the Parasite- Family Bomolochidae Sumpf, 1871 Host List. Information on the site(s) of occurrence and the prefecture(s) is also given for each copepod species. Bomolochus bellones Burmeister, 1835* Syn.: Bomolochus hyporhamphi Yamaguti and Yamasu, 1959 広島大学総合博物館研究報告 Bulletin of the Hiroshima University Museum 3: December 25, 2011 © 広島大学総合博物館 Hiroshima University Museum A Checklist of the Parasitic Copepods (Crustacea) of Fishes and Invertebrates of the Seto Inland Sea, Japan (1935-2011), with a New Locality Record for Caligus macarovi (Caligidae) 115 Host and site: Hyporhamphus sajori (as H. sayori, サ cavity ヨリ), gills Record: Yamaguti 1939c (Hyogo: Tarumi) Records: Yamaguti and Yamasu 1959 (Okayama: Remarks: This species was redescribed using material Tamano); Ho et al. 1983 (Okayama: Kojima Bay) from the Sea of Japan (Dojiri and Ho, 1988). Naricolax atypicus Ho, Do and Kasahara, 1983* Acanthochondria shawi Yü, 1935 Host and site: Hexagrammos otakii (アイナメ), nasal Host and site: Sillago sihama (モトギス), gills cavity Record: Yamaguti 1939c (Hyogo: Tarumi) Record: Ho et al. 1983 (Okayama: Kojima Bay) Remarks: The identifi cation of S. sihama by Yamaguti (1939c) needs verifi cation because the species is a sub- Nothobomolochus lateolabracis (Yamaguti and Yamasu, tropical fi sh and not distributed in the Seto Inland Sea. 1959)* Syn.: Artacolax lateolabracis Yamaguti and Yamasu, Acanthochondria sixteni (Wilson, 1922) 1959 Host and site: Paralichthys olivaceus (ヒラメ), gills Host and site: Lateolabrax japonicus (スズキ), gills Record: Yamaguti 1939c (unspecifi ed locality) Records: Yamaguti and Yamasu 1959 (Okayama: Remarks: This species was redescribed using material Tamano); Ho et al. 1983 (Okayama: Kojima Bay) from the Sea of Japan (Dojiri and Ho, 1988; Ho and Kim, 1995b). Nothobomolochus triceros (Basset-Smith, 1898)* Host and site: Pampus argenteus (マナガツオ), bran- Bactrochondria longitruncus (Yamaguti, 1939) chial cavity Syn.: Pseudochondracanthus longitruncus Yamaguti, Record: Ho et al. 1983 (Okayama: Kojima Bay) 1939 Host and site: Rhinoplagusia japonica (クロウシノシ Nothobomolochus thambus Ho, Do and Kasahara, 1983* タ), gills Host and site: Konosirus punctatus (コノシロ), gills Record: Yamaguti 1939c (Hyogo: Tarumi) Record: Ho et al. 1983 (Okayama: Kojima Bay) Brachiochondria higanfugu Yamaguti and Yamasu, 1959* Orbitacolax hapalogenyos (Yamaguti and Yamasu, Host and site: Takifugu pardalis (as Spheroides pardalis, 1959)* ヒガンフグ), mouth cavity Syn.: Taeniacanthus hapalogenyos Yamaguti and Record: Yamaguti and Yamasu 1959 (Okayama: Yamasu, 1959 Tamano) Host and sites: Hapalogenys mucronatus (セトダイ), gills, mouth cavity, branchial cavity Prochondracanthopsis quadricomutus Shiino, 1960 Records: Yamaguti and Yamasu 1959 (Okayama: Syn.: Humphyreysia hoi Do and Kasahara, 1982 Tamano); Ho et al. 1983 (Okayama: Kojima Bay) Host and site: Parapercis sexfasciata (クラカケトラ ギス), gills Pumiliopes squamosus Cressey and Boyle, 1973* Record: Do and Kasahara 1982 (Okayama: Kojima Host and site: Sardinella zunasi (as Harengula zunasi, Bay) サッパ), eye Remarks: Humphyreysia hoi was relegated to a junior Record: Ho et al. 1983 (Okayama: Kojima Bay) synonym of P. quadricomutus by Ho et al. (2011) Family Chondracanthidae Milne Edwards, 1840 Pseudacanthocanthopsis secunda (Yamaguti and Yamasu, 1960) Acanthochondria inimici Yamaguti, 1939 Syn.: Pseudacanthopsis
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