1. To Gerhard Piekarski on the occasion of his 75th birthday

   • H. M. Seitz

   Announcement Pages: 565 - 566

2. The action of salinomycin-Na and lasalocid-Na on chloroquine- and mepacrine-resistant line ofPlasmodium berghei K 173-strain in Wistar rats

   • W. Raether
   • H. Seidenath
   • H. J. Ganster

   Original Investigations Pages: 567 - 574

3. The surface topography ofPseudothoracocotyla indica (Unnithan, 1956) (Monogenea) from the gills ofScomberomorus commerson

   • P. Ramasamy
   • R. E. B. Hanna

   Original Investigations Pages: 575 - 581

4. Immunity toLitomosoides carinii inMastomys natalensis

   • H. Zahner
   • P. H. Wegerhof

   Original Investigations Pages: 583 - 593

5. Effect of age and environmental factors on the viability and excystment of metacercarial cysts ofParorchis acanthus in vivo and in vitro

   • Moses F. Asanji
   • Modupe O. Williams

   Original Investigations Pages: 595 - 601

6. The effect of praziquantel on the pseudophyllidean cestodeBothriocephalus acheilognathi in vitro

   • D. W. Pool

   Original Investigations Pages: 603 - 608

7. An ultrastructural study of the cirrus and vagina ofPhyllobothrium vagans (Cestoda: Tetraphyllidea)

   • I. Beveridge
   • K. Smith

   Original Investigations Pages: 609 - 616

8. C-banding analysis of six species of lung flukes,Paragonimus spp. (Trematoda: Platyhelminthes), from Japan and Korea

   • H. Hirai
   • Y. Sakaguchi
   • H. T. Imai

   Original Investigations Pages: 617 - 629

9. Quantitative aspects of the life cycle ofSkrjabingylus nasicola, a parasitic nematode of the frontal sinuses of mustelids

   • J. -M. Weber
   • C. Mermod

   Original Investigations Pages: 631 - 638

10. Fine structure of the embryonic envelopes ofOochoristica anolis (Cestoda: Linstowiidae)

    • David Bruce Conn

    Original Investigations Pages: 639 - 648

11. IgE synthesis in vitro during infection of mice with the nematodeNippostrongylus brasiliensis: Effects of mitogens and antigens

    • Ph. Pfeiffer
    • I. Rauschen
    • W. König

    Original Investigations Pages: 649 - 662

12. Characterization of antigens of the nematodeNippostrongylus brasiliensis by monoclonal antibodies

    • A. Bohn
    • W. König

    Original Investigations Pages: 663 - 672

13. Studies on the effects of cage culture of fish on the parasite fauna in a lowland freshwater loch in the west of Scotland

    • J. B. McGuigan
    • Christina Sommerville

    Original Investigations Pages: 673 - 682

14. Association between intracellular rickettsial-like infections of midgut cells and susceptibility to Trypanosome infection inGlossina spp.

    • I. Maudlin
    • D. S. Ellis

    Short Communications Pages: 683 - 687

15. Announcement of the establishment of neohepantotypes for some importantSarcocystis species

    • H. Mehlhorn
    • A. O. Heydorn
    • E. Göbel

    Short Communications Pages: 689 - 692

16. Isolation of larvalEchinococcus multilocularis by injection of infected human hepatic tissue homogenate into the Chinese hamster

    • Kenji Ohnishi
    • Minoru Nakao
    • Haruhiko Kutsumi

    Short Communications Pages: 693 - 695

17. In memoriam: Prof. Dr. rer. nat. Dr. h.c. Erich Scholtyseck (7.10.1918–18.4.1985)

    • Heinz Mehlhorn

    Obituary Pages: 697 - 697

18. Announcement

    Announcement Pages: 698 - 698