1. Proprioceptors of the thoracic limbs of Squilla mantis (Crustacea, Stomatopoda)

   • W. Wales
   • E. A. Ferrero

   OriginalPaper Pages: 133 - 144

2. Fine structure of the cerebral organs in hoplonemerteans (Nemertini), with a discussion of their function

   • Helen M. Amerongen
   • Fu Shiang Chia

   OriginalPaper Pages: 145 - 159

3. Structural organization of the gills in pipefish (Teleostei, Syngnathidae)

   • M. Prein
   • A. Kunzmann

   OriginalPaper Pages: 161 - 168

4. Ultrastructural investigation of the nuchal organs of Pygospio elegans (Polychaeta)

   • U. Schlötzer-Schrehardt

   OriginalPaper Pages: 169 - 179

5. Ultrastructure of the nephridio-circulatory connections in Tubulanus annulatus (Nemertini, Anopla)

   • Å. Jespersen
   • J. Lützen

   OriginalPaper Pages: 181 - 189