1. Population cytology of Leptysma argentina Bruner (Leptysminae, Acrididae)

   • C. J. Bidau
   • E. R. Hasson

   OriginalPaper Pages: 161 - 175

2. Chromosomal evolution of South American Columbiformes (Aves)

   • E. J. De Lucca

   OriginalPaper Pages: 177 - 185

3. Chromosomal polymorphism in planarians (Turbellaria, Tricladida) and the plate tectonics of the western Mediterranean

   • E. J. De Vries
   • J. Baguñà
   • I. R. Ball

   OriginalPaper Pages: 187 - 191

4. Interphase chromosome order: A proposal

   • C. P. Pussell

   OriginalPaper Pages: 193 - 201

5. Mitotic spatial model: Arrangement of homologous chromosomes

   • U. C. Lavania
   • A. K. Sharma

   OriginalPaper Pages: 203 - 208

6. Unexpected segregation ratios from male-linked translocations in the Mediterranean fruitfly, Ceratitis capitata (Diptera: Tephritidae)

   • A. S. Robinson

   OriginalPaper Pages: 209 - 215

7. Studies on mitotic and salivary chromosomes of Dacus cucurbitae Coquillett (Diptera: Trypetidae)

   • O. P. Singh
   • J. P. Gupta

   OriginalPaper Pages: 217 - 221

8. Genetic variation and environmental heterogeneity in some closely related goby species

   • G. P. Wallis
   • J. A. Beardmore

   OriginalPaper Pages: 223 - 237