1. Inhibition of adenylate cyclase activity in the goldfish melanophore is mediated by α ₂-adrenoceptors and a pertussis toxin-sensitive GTP-binding protein

   • F. Morishita
   • A. Shimada
   • K. Yamada

   OriginalPaper Pages: 533 - 540

2. Changes in prostaglandin E₂ and F_2α during vitellogenesis in the florida crayfish Procambarus paeninsulanus

   • E. P. Spaziani
   • G. W. Hinsch
   • S. C. Edwards

   OriginalPaper Pages: 541 - 545

3. Metabolism, thermogenesis and daily rhythm of body temperature in the wood lemming, Myopus schisticolor

   • S. Saarela
   • R. Hissa

   OriginalPaper Pages: 546 - 555

4. Quinidine-sensitive K⁺ channels in the basolateral membrane of embryonic coprodeum epithelium: regulation by aldosterone and thyroxine

   • B. Illek
   • H. Fischer
   • W. Clauss

   OriginalPaper Pages: 556 - 562

5. The thyroid and photoperiodic control of seasonal reproduction in American tree sparrows (Spizella arborea)

   • F. E. Wilson
   • B. D. Reinert

   OriginalPaper Pages: 563 - 573

6. Recovery after anaerobic metabolism in the leech (Hirudo medicinalis L.)

   • H. Schmidt
   • I. Zerbst-Boroffka

   OriginalPaper Pages: 574 - 580

7. Regulation of a voltage-dependent, calcium-activated K conductance by cyclic GMP in dissociated flounder enterocytes

   • S. M. O'Grady
   • K. E. Cooper
   • J. L. Rae

   OriginalPaper Pages: 581 - 586

8. Metabolic depression and Na⁺/K⁺ gradients in the aestivating Australian goldfields frog, Neobatrachus wilsmorei

   • J. E. Flanigan
   • P. C. Withers
   • M. Guppy

   OriginalPaper Pages: 587 - 593

9. Evolutionary significance of foregut fermentation in the hoatzin (Opisthocomus hoazin; Aves: Opisthocomidae)

   • M. G. Dominguez-Bello
   • M. C. Ruiz
   • F. Michelangeli

   OriginalPaper Pages: 594 - 601

10. Comparative thermoregulatory adaptations of field mice of the genus Apodemus to habitat challenges

    • A. Haim
    • A. Rubal
    • J. Harari

    OriginalPaper Pages: 602 - 607

11. Volume and pH regulation in agnathan erythrocytes: comparisons between the hagfish, Myxine glutinosa, and the lampreys, Petromyzon marinus and Lampetra fluviatilis

    • M. Nikinmaa
    • B. L. Tufts
    • R. G. Boutilier

    OriginalPaper Pages: 608 - 613

12. Functional mitochondria in snake Bothrops alternatus erythrocytes and modulation of HbO₂ affinity by mitochondrial ATP

    • S. H. Ogo
    • C. F. Bernardes
    • A. E. Vercesi

    OriginalPaper Pages: 614 - 619