1. A New Phoronid Species, Phoronis savinkini sp. n., from the South China Sea and an Analysis of the Taxonomic Diversity of Phoronida

   • E. N. Temereva
   • B. V. Neklyudov

   OriginalPaper 12 March 2019 Pages: 617 - 639

   

2. A New Species and Genus of Psammophilic Proseriata (Turbellaria, Otoplanidae) from Lake Baikal and Its Phylogenetic Relations as Revealed by 18S rRNA Sequence Data

   • A. G. Lukhnev
   • A. G. Koroleva
   • O. A. Timoshkin

   OriginalPaper 12 March 2019 Pages: 640 - 658

   

3. Innervation of Unpaired Branchial Appendages in the Annelids Terebellides cf. stroemii (Trichobranchidae) and Cossura pygodactylata (Cossuridae)

   • A. B. Tzetlin
   • A. E. Zhadan
   • E. V. Vortsepneva

   OriginalPaper 12 March 2019 Pages: 659 - 668

   

4. Cold Hardiness of Mass Soil Invertebrate Animals of Northeastern Asia: 1. Cold Hardiness and the Mechanisms of Its Maintenance

   • D. I. Berman
   • A. N. Leirikh

   OriginalPaper 12 March 2019 Pages: 669 - 679

   

5. The Cold Hardiness of Mass Soil Invertebrates of Northeastern Asia: 2. The Cold Hardiness of Soil Invertebrates as Adaptation to Climate

   • D. I. Berman
   • A. N. Leirikh

   OriginalPaper 12 March 2019 Pages: 680 - 690

   

6. Group Selection

   • A. S. Severtsov

   OriginalPaper 12 March 2019 Pages: 691 - 698

7. Distribution and Origin of Two Forms of the Marsh Frog Pelophylax ridibundus Complex (Anura, Ranidae) from Kamchatka Based on Mitochondrial and Nuclear DNA Data

   • S. M. Lyapkov
   • O. A. Ermakov
   • S. V. Titov

   OriginalPaper 12 March 2019 Pages: 699 - 705

   

8. Migrations of Bewick’s Swan (Cygnus bewickii): New Data on Tagging the Migration Routes, Stopovers, and Wintering Sites

   • D. Vangeluwe
   • S. B. Rozenfeld
   • G. V. Kirtaev

   OriginalPaper 12 March 2019 Pages: 706 - 717

   

9. Postjuvenile Moult in the Common Crossbill (Loxia curvirostra curvirostra): Photoperiodic Regulation and Its Role in Synchronization of the Annual Cycle

   • G. A. Noskov
   • T. A. Rymkevich
   • E. N. Smirnov

   OriginalPaper 12 March 2019 Pages: 718 - 731

   

10. The Variability and Spatial Distribution of Chaffinch Songs (Fringilla coelebs) in Moscow

    • I. V. Kislyakov
    • V. V. Ivanitskii

    OriginalPaper 12 March 2019 Pages: 732 - 743

    

11. The Pygmy White-Toothed Shrew (Suncus etruscus (Savi (1822)): A Species New to the Fauna of Russia

    • S. K. Alekseev
    • B. I. Sheftel

    OriginalPaper 12 March 2019 Pages: 744 - 750

    

12. Feeding Associations between the Asiatic Black Bear (Ursus thibetanus) and the Wild Boar (Sus scrofa) in the Sikhote-Alin Mountains

    • S. A. Kolchin

    OriginalPaper 12 March 2019 Pages: 751 - 755

13. Effect of the Number of Mating Partners and Sperm Quality on Reproductive Success in the Domestic Cat (Felis catus)

    • M. N. Erofeeva
    • G. S. Alekseeva
    • S. V. Naidenko

    OriginalPaper 12 March 2019 Pages: 756 - 765

    

14. Dimensions of the Body and Molars in the Mole Vole (Ellobius talpinus, Rodentia, Cricetidae) Depending on the Age and Environmental Conditions

    • Y. E. Kropacheva
    • M. I. Cheprakov
    • N. G. Smirnov

    OriginalPaper 12 March 2019 Pages: 766 - 771

    

15. Arvicolines (Arvicolinae, Rodentia) as Paleoenvironmental Proxies: Classification of Species Inhabiting the Central Part of Northern Eurasia Based on Environmental Preferences of Their Modern Representatives

    • E. A. Markova
    • T. V. Strukova
    • A. V. Borodin

    OriginalPaper 12 March 2019 Pages: 772 - 782

16. The Identity of Gray Voles (Cricetidae, Rodentia) from Bolshoi Shantar Island, Sea of Okhotsk, with Gromov’s Vole (Alexandromys gromovi Vorontsov et al. 1988)

    • N. E. Dokuchaev
    • I. N. Sheremetyeva

    OriginalPaper 12 March 2019 Pages: 783 - 787