1. Current problems in marine biodiversity studies

   • A. V. Adrianov

   Marine Biology Pages: S1 - S16

2. Strategies and methodology of marine diodiversity studies

   • A. V. Adrianov

   Marine Biology Pages: S17 - S21

3. New ideas on the origin of bilateral animals

   • V. V. Malakhov

   Invertebrate Zoology Pages: S22 - S33

4. Evolutionary significance of morphogenetic mechanisms

   • Yu. V. Mamkaev

   Morphology Pages: S34 - S42

5. Brood chambers (ovicells) of cheilostome bryozoans (bryozoa: Gymnolaemata): structure, research history, and modern problematics

   • A. N. Ostrovskii

   Invertebrate Zoology Pages: S43 - S55

6. On the knowledge of the intertidal zone of Russian Far Eastern Seas

   • A. I. Kafanov
   • M. B. Ivanova
   • M. V. Koltypin

   History of Science Pages: S56 - S67