1. Change and continuity

   • Thomas Bartolomaeus

   Editorial 12 February 2003 Pages: 1 - 2

2. The spermatozoon of the Echiniscidae (Tardigrada, Heterotardigrada) and its phylogenetic significance

   • Lorena Rebecchi
   • Alessandra Guidi
   • Roberto Bertolani

   Original Article Pages: 3 - 9

3. Yellow-bellied marmots (Marmota flaviventris) 'in the shape space' (Rodentia, Sciuridae): sexual dimorphism, growth and allometry of the mandible

   • Andrea Cardini
   • Paolo Tongiorgi

   Original Article Pages: 11 - 23

4. Protective mechanisms against the action of nematocysts in the epidermis of Cratena peregrina and Flabellina affinis (Gastropoda, Nudibranchia)

   • Rainer Martin
   • Paul Walther

   Original Article Pages: 25 - 32

5. Fine structure of the ciliated cells and ciliary rootlets of Intoshia variabili (Orthonectida)

   • George S. Slyusarev
   • Reinhardt Kristensen

   Original Article Pages: 33 - 39

6. Sexing at the larval stage in two ant species of the Formicoxenini (Hymenoptera)

   • Diethe Ortius-Lechner
   • Markus Rüger
   • Tina Wanke

   Original Article Pages: 41 - 45

7. Morphological plasticity of the outline and the internal structures of the shell of the Recent Terebratella tenuis sp. nov. (Brachiopoda, Terebratulida)

   • Anthony Tort

   Original Article 22 January 2003 Pages: 47 - 54