| Editorial | 7 |
| Developmental Morphology and Embryology |
|
| Temereva E.N., Malakhov V.V. Development of Phoronids (Phoronida, Lophophorata) | 8 |
| Sabirov R.M. Reproductive System in Males of Cephalopoda. II. Spermatophoric Complex of Organs | 34 |
| Tchesunov A.V. Diversity and Forms of Evolution of the Nematodes Associated with Marine Benthic Invertebrates | 51 |
| Kolbasov G.A. Parasitic Microcrustaceans of the Class Tantulocarida from the White Sea. Morphology and Development | 68 |
| Zabotin Y.I., Golubev A.I. Ultrastructure of Spermatozoa of Archaphanostoma agile (Acoela) | 84 |
| Shakurova N.V. Ultrastructural Features of the Multiocular Photoreceptoral System of Planariidae Family (Turbellaria: Tricladida) | 95 |
| Ecology |
|
Pakhomov E.A., Kaehler S., Perissinotto R. The Prince Edward Islands' life-support system: relative importance of local and advected sources
| 104 |
| Tymanov O.N., Galanceva L.F. The Comparative Analysis of Anthropogenic and Zoogenic Influences on Zoobenthos of Small Rivers in the Republic of Tatarstan | 122 |
| Kutyrkin A.V. Influence of Urbanogenic Environment Transformations upon Bloodsucker Ectoparasites of Small Mammals | 132 |
| Sukhodolskaya R.A., Timofeeva G.A., Habibullina N.R. Fauna and Population Characteristics of Ground Beetles in Kazan | 145 |
| Bespalov A.F. The Effect of Bridge Building on the Bird Species Diversity | 151 |
| Hairutdinov I.Z. Study of Sexual Structure of Sand Lizard Lacerta agilis L. Population from Transformed Territory | 156 |
| Biological diversity |
|
| Melnichnova E.F., Bespyatikh A.V. Spider Fauna of Tatarstan according to the Results of 2004-2008 Research. Development of Scientific Information Website | 162 |
| Karmazina I.O., Shulaev N.V. Fauna and Ecology of Orthoptrous Insects (Insecta: Orthoptera) of Volga-Kama State Nature Biosphere Reserve | 173 |
| Gubeidullina A.H., Boiko W.A., Lyubarskaya O.D. Fauna and Population of Ixode ticks (Ixodidae) in Forests of Uljanovsky Province within Two Attendance Periods (1966-1969, 2007-2008) | 181 |
| Tumilovich O.A. On Dragonfly Fauna of Kaliningrad District | 192 |
| Bakin O.V. Vascular Plants Flora of Bogs in Tatarstan | 197 |
| Yevstigneeva A.S., Yevstigneev V.U. Taxonomic Analysis of the Lichenoflora in Tatarstan Republic | 212 |
| Saidova N.V., Lyubarsky E.L. Diagnoses and Keys for Ontogenetic Conditions of Adonis vernalis L. in the Republic of Tatarstan | 224 |
| Bioinvasions |
|
| Yakovleva A.V., Yakovlev V.A., Sabirov R.M. Zoobenthos Invaders and Their Distribution in the Kuibyshev Reservoir | 231 |
| Frolova L.A. Trophic Features of Round Goby Invasive Species Neogobius melanostomus (Pallas, 1811) in the Upper Part of the Kuibyshev Reservoir | 244 |
| Galanin I.F. Studies on Tubenose Goby Proterorhinus marmoratus (Pallas, 1814) Expansion in the Kuibyshev Reservoir | 250 |
| Parasitology |
|
| Sokolina F.M., Gorochov V.V. Specifics of Invasion of Miracidium Fasciola hepatica L., 1758 in Body of Mollusks Lymnaea truncatula M., 1774 | 260 |
| Ichthiology |
|
| Holostova E.V., Kuznetsov V.A. Morphological Specifics of Roach and Ide Larvae Inhabiting the Kuibyshev Reservoir Depending on Ecological Conditions in Different Years | 267 |
| Vakatov A.V., Smirnov A.A., Sabirov R.M. The Importance of Zooplankton in Feeding of Marketable Fishes in Pritaui Area of Okhotsk Sea | 280 |
| Kuznetsov V.A., Ananin A.N., Murtazina L.R. Species Composition and Abundance of Fishes in Early Ontogenesis in Lowers of Sviyajsky Gulf of the Kuibyshev Reservoir in 2001-2006s | 287 |