1. Online First publication

   Editorial 04 May 2002 Pages: 123 - 123

2. Male genital organs, spermatogenesis and spermatozoa in the enigmatic terrestrial polychaete Parergodrilus heideri (Annelida, Parergodrilidae)

   • Günter Purschke

   Original Article 23 January 2002 Pages: 125 - 138

3. Serous gland polymorphism in the skin of Phyllomedusa hypochondrialis azurea (Anura, Hylidae): response by different gland types to norepinephrine stimulation

   • Daniele Nosi
   • Alessandro Terreni
   • Giovanni Delfino

   Original Article 12 February 2002 Pages: 139 - 148

4. Spermatozoa and spermatogenesis in Genostoma kozloffi (Plathelminthes, Rhabdocoela)

   • Regina Pfistermüller
   • Seth Tyler
   • Gregory S. Hyra

   Original Article 12 February 2002 Pages: 149 - 158

5. Ultrastructure of dimorphic sperm and seminal receptacle in the hermaphrodites Barrimysia siphonosomae and Pseudopythina ochetostomae (Bivalvia, Galeommatoidea)

   • Åse Jespersen
   • Jørgen Lützen
   • Brian Morton

   Original Article 28 March 2002 Pages: 159 - 172

6. The musculature of the praesoma in Macracanthorhynchus hirudinaceus (Acanthocephala, Archiacanthocephala): re-examination and phylogenetic significance

   • Holger Herlyn

   Original Article 24 April 2002 Pages: 173 - 182

7. Ultrastructure of the renopericardial complex in Hypselodoris tricolor (Gastropoda, Nudibranchia)

   • Alexander Fahrner
   • Gerhard Haszprunar

   Original Article 27 March 2002 Pages: 183 - 194