1. Careproctus iacchus, a new variegated snailfish (Liparidae) from the Seas of Japan and Okhotsk

   • Yoshiaki Kai
   • Akira Tohkairin
   • Tomonori Hamatsu

   Full Paper 01 March 2018 Pages: 417 - 422

   

2. Sebastiscus vibrantus, a new species of rockfish (Sebastidae) from Indonesia and Taiwan

   • Satoshi Morishita
   • Toshio Kawai
   • Hiroyuki Motomura

   Full Paper 24 April 2018 Pages: 423 - 432

   

3. Review of the clingfish genus Kopua (Gobiesocidae: Trachelochisminae) in Japan, with description of a new species

   • Kyoji Fujiwara
   • Makoto Okamoto
   • Hiroyuki Motomura

   Full Paper 22 May 2018 Pages: 433 - 453

   

4. A redescription of the gobiid fish Taenioides purpurascens (Gobiidae: Amblyopinae) with comments on, and a key to, species in the genus

   • Edward O. Murdy

   Full Paper 04 May 2018 Pages: 454 - 461

   

5. Morphological, distributional, and genetic characteristics of Cottus pollux in the Kyushu Island, Japan: indication of fluvial and amphidromous life histories within a single lineage

   • Kazuki Kanno
   • Norio Onikura
   • Jun Nakajima

   Full Paper 05 June 2018 Pages: 462 - 470

   

6. Abudefduf nigrimargo, a new species of damselfish (Perciformes: Pomacentridae) from Taiwan

   • Kunto Wibowo
   • Keita Koeda
   • Hiroyuki Motomura

   Full Paper 07 May 2018 Pages: 471 - 481

   

7. Variation in growth performance of Ryukyu-ayu, Plecoglossus altivelis ryukyuensis, inferred from otolith analysis

   • Iki Murase
   • Tatsuya Kawakami
   • Kei’ichiro Iguchi

   Full Paper 21 May 2018 Pages: 482 - 487

   

8. Two new species of deepwater flathead Bembras Cuvier, 1829 from the Andaman Sea, eastern Indian Ocean

   • Hisashi Imamura
   • Peter N. Psomadakis
   • Htun Thein

   Full Paper 25 May 2018 Pages: 488 - 495

   

9. Spatial expansion and increased population density of masu salmon parr independent of river restoration

   • Genki Sahashi
   • Kentaro Morita
   • Daisuke Kishi

   Short Report 09 March 2018 Pages: 496 - 501

   

10. Multi-male group and bidirectional sex change in the gobiid fish, Trimma caudomaculatum

    • Sayo Tomatsu
    • Keita Ogiso
    • Tomoki Sunobe

    Short Report 24 April 2018 Pages: 502 - 506

    

11. Protandry of the flathead Suggrundus meerdervoortii (Teleostei: Platycephalidae)

    • Toshiaki Shitamitsu
    • Tomoki Sunobe

    Short Report 17 July 2018 Pages: 507 - 509

    

12. Costs and benefits of biparental mucus provisioning in discus fish (Symphysodon aequifasciatus)

    • Shun Satoh
    • Hideaki Tanoue
    • Masahiko Mohri

    Short Report 07 May 2018 Pages: 510 - 514

    

13. Editorial notes and announcements

    Editorial notes and Announcements 03 July 2018 Pages: 515 - 515

14. Editorial Notes and Announcements

    Editorial Notes and Announcements 05 October 2018 Pages: 516 - 517