1. The behavior of fishes in their acoustic environment

   • Abby L. Schwarz

   EditorialNotes Pages: 3 - 15

2. Social and reproductive behavior of three mouthbrooding cardinalfishes, Apogon doederleini, A. niger and A. notatus

   • Tetsuo Kuwamura

   OriginalPaper Pages: 17 - 24

3. The adaptive significance of behavioural ontogeny in some. centrarchid fishes

   • Joseph A. Brown

   OriginalPaper Pages: 25 - 34

4. Size and morphological variation in males of the sailfin molly, Poecilia latipinna

   • Franklin F. Snelson Jr.

   OriginalPaper Pages: 35 - 47

5. Concordant variation in thermal tolerance and allozymes of the red shiner, Notropis lutrensis, inhabiting tailwater sections of the Brazos River, Texas

   • Timothy L. King
   • Earl G. Zimmerman
   • Thomas L. Beitinger

   OriginalPaper Pages: 49 - 57

6. Determination of age and growth in stream fishes of northern Borneo

   • Dwight J. Watson
   • Eugene K. Balon

   OriginalPaper Pages: 59 - 70

7. Gill raker variation and the feeding niche of some temperate and tropical freshwater fishes

   • G. Eric E Moodie

   BriefCommunication Pages: 71 - 76

8. Comparative neuroanatomy: foundations for a comparative neurobiology

   • Andrew H. Bass

   BookReview Pages: 77 - 79

9. Announcement

   Announcement Pages: 80 - 80