1. Hybridization of two forms of ninespine stickleback, Pungitius pungitius and P. platygaster, under experimental conditions and an attempt to predict the consequences of their contact in nature

   • Valery V. Ziuganov
   • Victor Ye Gomeluk

   OriginalPaper Pages: 241 - 251

2. Technique of making fish illustration 10

   • Zbigniew T. Jastrzebski

   OriginalPaper Pages: 252 - 252

3. Functional morphology of the head of Hawaiian and Mid-Pacific butterflyfishes (Perciformes, Chaetodontidae)

   • Philip J. Motta

   OriginalPaper Pages: 253 - 276

4. Variations in the sizes of gonads, eggs and larvae of the dace, Leuciscus leuciscus

   • Richard H. K. Mann
   • Christopher A. Mills

   OriginalPaper Pages: 277 - 287

5. Technique of making fish illustration 11

   • Zbigniew T. Jastrzebski

   OriginalPaper Pages: 288 - 288

6. A test of a model for planktivorous filter feeding by bream Abramis brama

   • Eddy H. R. R. Lammens

   OriginalPaper Pages: 289 - 296

7. Respiratory metabolism of mosquitofish, Gambusia affinis: effects of temperature, dissolved oxygen, and sex difference

   • Joseph J. Cech Jr.
   • Michael J. Massingill
   • Alison L. Linden

   OriginalPaper Pages: 297 - 307

8. Jumping mullet — the internal diving bell hypothesis

   • H. Dickso Hoese

   BriefCommunication Pages: 309 - 314

9. Book critique

   BookReview Pages: 315 - 317

10. Author's index

    Legacy Pages: 318 - 318

11. Acknowledgements for refereeing

    Acknowledgments Pages: 318 - 318

12. Volume 13

    Legacy Pages: 319 - 319