1. Evolutionary significance of fine structure of archiannelid eyes

   • Richard M. Eakin
   • Gary G. Martin
   • Carol T. Reed

   OriginalPaper Pages: 1 - 18

2. Comparative electron microscopic studies of muscle and sperm cells inBranchiobdella pentodonta whitman andBythonomus lemani grube (Annelida clitellata)

   • Marco Ferraguti
   • Giulio Lanzavecchia

   OriginalPaper Pages: 19 - 36

3. Hair regeneration during moulting in the spiderCiniflo similis (Araneae, Dictynidae)

   • David John Harris

   OriginalPaper Pages: 37 - 63

4. Asexual reproduction and regeneration ofCatenula (Turbellaria, Archoophora)

   • Jerzy Moraczewski

   OriginalPaper Pages: 65 - 80