1. Investigations on some tropical euphausiid species of the Indian Ocean

   • L. A. Ponomareva

   OriginalPaper Pages: 81 - 86

2. Mesopelagic fishes and thermal fronts in the western Sargasso Sea

   • R. H. Backus
   • J. E. Craddock
   • D. L. Shores

   OriginalPaper Pages: 87 - 106

3. The feeding mechanisms in plankton eaters

   • G. Bertmar
   • C. Strömberg

   OriginalPaper Pages: 107 - 109

4. Slow developing demersal embryos and larvae of the antarctic sea star Odontaster validus

   • J. S. Pearse

   OriginalPaper Pages: 110 - 116

5. Yolk utilization in the gastropod Crepidula fornicata

   • T. J. Pandian

   OriginalPaper Pages: 117 - 121

6. Studies of the pigments in the shrimp Crangon crangon (Crustacea: Malacostraca)

   • R. Czerpak
   • B. Czeczuga

   OriginalPaper Pages: 122 - 125

7. Etude histologique, histochimique et biochimique des sécrétions ectodermiques des Cérianthes

   • Y. Tiffon
   • J. Bouillon
   • P. Comte

   OriginalPaper Pages: 126 - 133

8. Absence of sterol synthesis in larvae of the mud crab Rhithropanopeus harrisii and of the spider crab Libinia emarginata

   • J. O'Connell Whitney

   BriefCommunication Pages: 134 - 135

9. Liver lesions produced by hydatid-like cysts in an elasmobranch, the electric ray (Torpedo californica)

   • A. C. Smith
   • H. F. Little

   OriginalPaper Pages: 136 - 142

10. Beiträge zur Temperaturadaptation des Aales (Anguilla vulgaris)

    • P. Malessa

    OriginalPaper Pages: 143 - 158

11. Two sibling species of Tisbe (Copepoda, Harpacticoida): Tisbe reluctans and T. persimilis n. sp. Research on their morphology and population dynamics

    • B. Volkmann-Rocco
    • G. Fava

    OriginalPaper Pages: 159 - 164

12. Die Symbiose zwischen dem acoelen Turbellar Convoluta convoluta und Diatomeen der Gattung Licmophora

    • G. Apelt

    OriginalPaper Pages: 165 - 187

13. Preliminary studies on primary productivity at Payakonda, Gulf of Kandalaksha, White Sea

    • K. Radhakrishna

    OriginalPaper Pages: 188 - 190