1. From the Editor

   OriginalPaper 24 November 2012 Pages: 777 - 779

2. Development of symmetry and asymmetry in the early evolution of the echinoderms

   • S. V. Rozhnov

   OriginalPaper 24 November 2012 Pages: 780 - 792

3. System of the class Holothuroidea

   • A. V. Smirnov

   OriginalPaper 24 November 2012 Pages: 793 - 832

4. Ontogenetic systematics: The synthesis of taxonomy, phylogenetics, and evolutionary developmental biology

   • A. V. Martynov

   OriginalPaper 24 November 2012 Pages: 833 - 864

5. Diversity dynamics of echinoderms and evolution of marine communities

   • A. V. Markov
   • A. A. Bondarev
   • M. V. Vinarsky

   OriginalPaper 24 November 2012 Pages: 865 - 876

6. The early Permian Crinoid Hypermorphocrinus magnospinosus from Cisuralia

   • Yu. A. Arendt

   OriginalPaper 24 November 2012 Pages: 877 - 885

7. Traces of Augoichnus dituberculatus gen. et sp. nov. on Hypermorphocrinus magnospinosus from the Lower Permian of Cisuralia

   • Yu. A. Arendt

   OriginalPaper 24 November 2012 Pages: 886 - 893

8. Sea stars and their macrosymbionts in the Bay Of Nhatrang, Southern Vietnam

   • T. I. Antokhina
   • T. A. Britayev

   OriginalPaper 24 November 2012 Pages: 894 - 908

9. Fauna of unstalked crinoids (Crinoidea: Comatulida) of the bay of Nhatrang, Southern Vietnam

   • E. S. Mekhova
   • T. A. Britayev

   OriginalPaper 24 November 2012 Pages: 909 - 926

10. Vertical trends in morphological variability of sea urchins of the genus Echinus from the Northeast Atlantic and Arctic

    • K. V. Minin

    OriginalPaper 24 November 2012 Pages: 927 - 935

11. Morphology of gametes of mollusks, echinoderms, and brachiopods in systematics and phylogeny

    • A. L. Drozdov
    • V. V. Vinnikova
    • S. A. Tyurin

    OriginalPaper 24 November 2012 Pages: 936 - 944