1. Motor supply of the dorsal longitudinal muscles II: Comparison of motoneurone sets in Tracheata

   • R. Heckmann
   • W. Kutsch

   Original Article Pages: 197 - 211

2. Characteristics of the sperm flagellum in fungus gnats (Insecta, Diptera, Mycetophiloidea)

   • R. Dallai
   • P. Lupetti
   • B. Mamaev

   Original Article Pages: 213 - 219

3. Ocelli in a Cnidaria polyp: the ultrastructure of the pigment spots in Stylocoronella riedli (Scyphozoa, Stauromedusae)

   • Michael J. F. Blumer
   • Luitfried v. Salvini-Plawen
   • Thomas Büchinger

   Original Article Pages: 221 - 227

4. Ultrastructural differences as a taxonomic marker: the segmental ocelli of Polyophthalmus pictus and Polyophthalmus qingdaoensis sp.n. (Polychaeta, Opheliidae)

   • G. Purschke
   • Z. Ding
   • M.C. Müller

   Original Paper Pages: 229 - 241