1. Systematic observations on tropical Asian medakas or ricefishes of the genusOryzias, with descriptions of four new species

   • Tyson R. Roberts

   OriginalPaper Pages: 213 - 224

2. Freshwater fugu or pufferfishes of the genusTetraodon from the Mekong basin, with descriptions of two new species

   • Tyson R. Roberts

   OriginalPaper Pages: 225 - 234

3. Effects of dark-light step transitions on circadian locomotor activity rhythms of the hagfish,Eptatretus burgeri

   • Hiroshi Kabasawa

   OriginalPaper Pages: 235 - 239

4. Annual reproductive cycle based on histological changes in the ovary of the female mosquitofish,Gambusia affinis, in central Japan

   • Yasunori Koya
   • Takako Itazu
   • Mutsumi Inoue

   OriginalPaper Pages: 241 - 248

5. Redescription of a rare bothid,Asterorhombus bleekeri (Macleay), and description of a new species ofAsterorhombus from northwestern Australia (Teleostei: Pleuronectiformes)

   • Kunio Amaoka
   • Masahito Arai

   OriginalPaper Pages: 249 - 257

6. Parsimony analysis of the distribution pattern of Japanese primary freshwater fishes, and its application to the distribution of the bagrid catfishes

   • Katsutoshi Watanabe

   OriginalPaper Pages: 259 - 270

7. Validity of the leiognathid fish,Gazza dentex (Valenciennes in Cuvier and Valencinnes, 1835), with designation of a lectotype, and redescription ofG. minuta (Bloch, 1795)

   • Tsuyoshi Yamashita
   • Seishi Kimura
   • Yukio Iwatsuki

   OriginalPaper Pages: 271 - 280

8. The leopardChimaera, a new species of chimaeroid fish from New Zealand (Holocephali, Chimaeriformes, Chimaeridae)

   • Dominique A. Didier

   OriginalPaper Pages: 281 - 289

9. Development of juveniles of four flatheads (Perciformes, Platycephalidae) occurring in southern Japan

   • Masashi Hirota
   • Kunio Sasaki

   OriginalPaper Pages: 291 - 301

10. Development of the vertebral column and caudal complex in a flyingfish,Parexocoetus mento mento (Teleostei: Exocoetidae)

    • Juanito C. Dasilao
    • Kosaku Yamaoka

    OriginalPaper Pages: 303 - 308

11. Application of otolith Sr: Ca ratios to estimate the migratory history of masu salmon,Oncorhynchus masou

    • Takaomi Arai
    • Katsumi Tsukamoto

    OriginalPaper Pages: 309 - 313

12. Redescription of a snailfish,Liparis chefuensis, with comments on its sexual dimorphism and synonymy (Scorpaeniformes: Liparidae)

    • Youn Choi
    • Kaoru Kido
    • Kunio Amaoka

    OriginalPaper Pages: 314 - 318

13. Notes on the mating system ofOmobranchus elegans andO. fasciolatoceps (Blenniidae) at Maizuru, Japan

    • Tomoki Sunobe

    OriginalPaper Pages: 319 - 321

14. Memories of Dr. Morizumi Nakamura (1914–1998)

    • Harumi Sakai

    Obituary Pages: 322 - 323

15. International Conference on the Loaches of the GenusCobitis (and related genera)

    Editorial Notes & Announcements Pages: 323 - 324

16. Information on fishes welcomed toIchthyological Research

    Editorial Notes & Announcements Pages: 324 - 324