Species Diversity
Contents of Volume 25
A New Species of Semicytherura (Crustacea: Ostracoda: Cytheroidea) from Obitsu River Estuary (Central Japan) and Its Microhabitat
Yuriko Nakao, Akira Tsukagoshi
2020 Volume 25 Number 1 Pages 1-9
Two New Species of Composetia (Annelida: Nereididae) from Small Estuaries in the Ryukyu Islands, Southern Japan, with a List of All Species Currently Belonging to Composetia
Masanori Sato
2020 Volume 25 Number 1 Pages 11-24
Distributions and Variations of Two Estuarine Species of Composetia (Annelida: Nereididae) in the Ryukyu Islands, Southern Japan, with a New Record of Composetia tokashikiensis from Thailand
Masanori Sato, Takumi Ebihara, Kiyoshi Satake, Shigeaki Kojima, Hiroaki Fukumori, Saowapa Angsupanich
2020 Volume 25 Number 1 Pages 25-38
First Japanese Record of the Fivebar Grouper Epinephelus kupangensis (Perciformes: Serranidae)
Yuta Inoue, Hiromitsu Endo, Hiroyuki Motomura, Mizuki Matsunuma
2020 Volume 25 Number 1 Pages 39-47
Revised Diagnosis of the Rare Clingfish Kopua nuimata (Gobiesocidae) with Notes on Fresh Coloration and First Australian Record
Kyoji Fujiwara, Hiroyuki Motomura
2020 Volume 25 Number 1 Pages 49-54
First Record of the Lizardfish Synodus mundyi (Actinopterygii: Aulopiformes: Synodontidae) from Japan
Naohide Nakayama, Takaaki Tamai
2020 Volume 25 Number 1 Pages 55-60
Alien Gill Parasites of the Silver Carp Hypophthalmichthys molitrix (Cypriniformes: Cyprinidae) in Tochigi Prefecture, Central Japan
Masato Nitta, Kazuya Nagasawa
2020 Volume 25 Number 1 Pages 61-73
Three New Species of Dendrogaster (Crustacea: Ascothoracida) Infecting Goniasterid Sea-Stars (Echinodermata: Asteroidea) from Japan
Nobuhiro Saito, Kaori Wakabayashi, Takeya Moritaki
2020 Volume 25 Number 1 Pages 75-87
Upgrading of Three Subspecies of Eudigraphis takakuwai to the Species Rank (Diplopoda: Penicillata: Polyxenida: Polyxenidae)
Shigenori Karasawa, Keisuke Kawano, Shin-ichi Fukaya, Nobuo Tsurusaki
2020 Volume 25 Number 1 Pages 89-102
Description of a Pelagic Juvenile of the Poorly Known Anglerfish Sladenia zhui (Lophiidae) from the East China Sea
Mizuki Matsunuma, Nozomu Muto
2020 Volume 25 Number 2 Pages 107-116
A New Species of Rhabdias (Nematoda: Rhabditida: Rhabdiasidae) from Miyakojima Island, Okinawa, Japan
Naoya Sata, Hirohiko Takeuchi, Takafumi Nakano
2020 Volume 25 Number 2 Pages 117-121
Redescription of the specimen of Thrissina dussumieri (Teleostei: Clupeiformes: Engraulidae), collected from the Ogasawara Islands
Harutaka Hata
2020 Volume 25 Number 2 Pages 123-127
The Bluespotted Hind Cephalopholis cyanostigma (Perciformes: Serranidae) from the Southern Ryukyu Islands: First Specimen-based Records from Japan
Jumpei Nakamura, You Sakurai, Tetsuo Yoshino, Hiroyuki Motomura
2020 Volume 25 Number 2 Pages 129-133
First Specimen-based Records of Canthidermis macrolepis (Tetraodontiformes: Balistidae) from the Pacific Ocean and Comparisons with C. maculata
Mizuki Matsunuma, Shinichirou Ikeguchi, Yoshiaki Kai
2020 Volume 25 Number 2 Pages 135-144
Description of a New Species of Cybaeus (Araneae: Cybaeidae) from Central Honshu, Japan
Kenji Matsuda, Yoh Ihara, Takafumi Nakano
2020 Volume 25 Number 2 Pages 145-152
Elpidia soyoae, a New Species of Deep-sea Holothurian (Echinodermata) from the Japan Trench Area
Akito Ogawa, Takami Morita, Toshihiko Fujita
2020 Volume 25 Number 2 Pages 153-162
First Records of the Pughead-pipefish Bulbonaricus davaoensis (Teleostei: Syngnathidae) from Japan
Moeri Araki, Kazutoshi Uehara, Hiroshi Senou, Hiroyuki Motomura
2020 Volume 25 Number 2 Pages 163-169
Description of a New Species of Rhabdias (Nematoda: Rhabditida: Rhabdiasidae) from Ishigakijima Island, Okinawa, Japan
Naoya Sata, Hirohiko Takeuchi, Takafumi Nakano
2020 Volume 25 Number 2 Pages 171-175
First Records of Uropterygius oligospondylus (Anguilliformes: Muraenidae) from Minami-iwo-to Island, Southern Japan
Yusuke Hibino, Kaoru Kuriiwa, Tetsuya Yamada, Kiyotaka Hatooka, Kar Hoe Loh, Tetsuro Sasaki
2020 Volume 25 Number 2 Pages 177-182
A New Species of Bathyal Nemertean, Proamphiporus kaimeiae sp. nov., off Tohoku, Japan, and Molecular Systematics of the Genus (Nemertea: Monostilifera)
Natsumi Hookabe, Shinji Tsuchida, Yoshihiro Fujiwara, Hiroshi Kajihara
2020 Volume 25 Number 2 Pages 183-188
A New Species of Zygantroides (Platyhelminthes: Polycladida) from Amakusa, Japan
Yuki Oya, Aoi Tsuyuki, Hiroshi Kajihara
2020 Volume 25 Number 2 Pages 189-196
Salmincola edwardsii (Copepoda: Lernaeopodidae) Parasitic on Southern Asian Dolly Varden, Salvelinus malma krascheninnikova, from Hokkaido Island, Japan, with the Southernmost Distribution Record of the Copepod in Asia
Kazuya Nagasawa
2020 Volume 25 Number 2 Pages 197-203
A New Species of Free-living Marine Nematode, Proplatycoma tsukubae sp. nov. (Enoplida: Leptosomatidae), from Japan
Daisuke Shimada, Keiichi Kakui
2020 Volume 25 Number 2 Pages 205-211
Meiobenthic Polychaete Dinophilus sp. cf. gyrociliatus (Annelida: Dinophilidae) from Japan with SEM Observation and DNA Barcodes
Naoto Jimi, Takuya Minokawa, Toru Miura, Hiroshi Kajihara
2020 Volume 25 Number 2 Pages 213-218
Monoporella projecta (Cheilostomata: Bryozoa), a New Uniserial Species from the Continental Shelf and Slope of Japan
Shinji Arakawa
2020 Volume 25 Number 2 Pages 219-225
A New Species of Massinium (Echinodermata: Holothuroidea: Dendrochirotida: Phyllophoridae: Semperiellinae) from Western Japan
Yusuke Yamana, Yuzo Ota, Hisanori Kohtsuka, Kazumi Yoshizaki
2020 Volume 25 Number 2 Pages 227-236
A New Kelp Crab Species of the Genus Pugettia (Crustacea: Decapoda: Brachyura: Epialtidae) from Shandong Peninsula, Northeast China
Naoya Ohtsuchi, Hironori Komatsu, Xinzheng Li
2020 Volume 25 Number 2 Pages 237-250
Three Species of Ribbon Worms (Nemertea) from Cebu, the Philippines
Hiroshi Kajihara
2020 Volume 25 Number 2 Pages 251-273
Takuma Fujii, Yuko F Kitano, Hiroyuki Tachikawa
2020 Volume 25 Number 2 Pages 275-282
A New Record of Brittle Star Ophiopsila cf. polyacantha (Echinodermata: Ophiuroidea) from Southwestern Japan, with Notes on its Bioluminescence
Masanori Okanishi, Takuma Fujii
2020 Volume 25 Number 2 Pages 283-294
New Records of Species of Gebiidea and Anomura (Crustacea: Decapoda) from the Sea of Japan
Masayuki Osawa, Yuzo Ota
2020 Volume 25 Number 2 Pages 295-307
Masami Obuchi
2020 Volume 25 Number 2 Pages 309-328
Lamispina miurai sp. nov. (Annelida: Flabelligeridae) from off Aomori, Japan
Yuki Higashida, Naoto Jimi, Hiroshi Kajihara
2020 Volume 25 Number 2 Pages 329-342
First Record of the Rare Parasitic Isopod Elthusa splendida (Cymothoidae) from the Pacific Ocean, Based on a Specimen Found in a Museum Shark Collection
Ryota Kawanishi, Shinpei Ohashi
2020 Volume 25 Number 2 Pages 343-348
Redescription of Dactylogyrus petruschewskyi Gussev, 1955 (Monogenea: Dactylogyridae), a Newly Recorded Alien Monogenean from an Alien Cyprinid, Megalobrama amblycephala Yih, 1955 (Cypriniformes: Cyprinidae), in Ibaraki Prefecture, Central Japan
Masato Nitta, Takanori Ishikawa, Tomiji Hagiwara
2020 Volume 25 Number 2 Pages 349-354
Acentrogobius limarius (Gobiidae) from the Ryukyu Islands, Japan: First Northern Hemisphere Records
Kyoji Fujiwara, Kiyoshi Hagiwara, Toshiyuki Suzuki, Hiroyuki Motomura
2020 Volume 25 Number 2 Pages 355-359
Reflections on the Nature, Framing, and Testing of Historical Biogeographic Hypotheses
Ronald Sluys
2020 Volume 25 Number 2 Pages 361-367
Salmincola markewitschi (Copepoda: Lernaeopodidae) Parasitic on Whitespotted Char, Salvelinus leucomaenis, in a Mountain Stream of Honshu Island, Central Japan
Kazuya Nagasawa
2020 Volume 25 Number 2 Pages 369-375
First Record of Platyberyx rhyton (Teleostei: Perciformes: Caristiidae) Outside of Japanese Waters and Description of Juvenile Morphology
Benjamin W. Frable, Duane E. Stevenson
2020 Volume 25 Number 2 Pages 377-380