cover (pdf)Honţ S., Oprea D. & Oprea L. – Historical overview of sturgeon fishery in the Lower Danube River — 3-12. PDF
Szederjesi T., Pavlíček T. & Csuzdi C. –Earthworms from the French Pyrenees, with description of a new Scherotheca (Opothedrilus) species (Clitellata: Megadrili: Lumbricidae) — 13-20. PDF
Dedov I. – Inventory of the terrestrial gastropods in a poplar forest in the valley of the Bregalnitsa River, Republic of North Macedonia, with the description of a new species of the genus Vitrea Fitzinger, 1833 — 21-26. PDF
Háva J. & Zahradník P. – A contribution to the knowledge of the genus Pytho Latreille,
1796 (Coleoptera: Pythidae) from China, with the description of Pytho sichuanicus sp. n. — 27-30. PDF
Munjiu O., Buşmachiu G., Şuleşco T., Șuberneţkii I. & Toderaş I. – Review of aquatic arthropods
(phylum Arthropoda) in the Republic of Moldova — 31-50. PDF
Sivilov O.M., Soldati F. & Zlatkov B.P. – Three tenebrionid species (Insecta: Coleoptera: Tenebrionidae)
New to the Bulgarian fauna, with taxonomic comments — 51-57. PDF
Teofilova T. M., Gradinarov D. & Kodzhabashev N. D. – Phosphaenus hemipterus (Goeze, 1777)
(Coleoptera:Lampyridae): the first record in Bulgaria, with data on its habitat preferences and feeding — 59-64. PDF
Todorov I., Hristov G., Grozdanov A., Parvanov D. & Askew R. – New records of Pteromalidae
(Hymenoptera:Chalcidoidea) from Lozenska Mountain, with contributions to the fauna of Bulgaria — 65-70. PDF
Uzunova E. P., Kenderov L. A. & Stefanov T. R. – Fish species recorded in the coastal area of the South Bay,
Livingston Island, South Shetlands — 71-76. PDF
Popova S., Vacheva E., Zlatanova D. & Tzankov N. – Age and sex-related differences determine
microhabitat use in Lacerta agilis bosnica Schreiber, 1912 (Reptilia: Lacertidae) in Western Bulgaria — 77-85. PDF
Szep D., Krcmar S. & Purger J. J. – Possible causes of temporal changes in the diet composition of common
barn-owls Tyto alba (Scopoli, 1769) (Strigiformes: Tytonidae) in Baranja, Croatia — 87-94. PDF
Keskin G., Durmuş S., Karakaya M. & Karataş N. M. – Is there any aerodynamic obstacle to gliding in great bustard? — 95-98. PDF
Lam T. T. H. & Dinh Q. M. – Factors affecting growth pattern and condition of Butis koilomatodon
(Bleeker, 1849) (Gobiiformes: Eleotridae) from the Mekong Delta, Vietnam — 99-106. PDF
Zidarova S.A. & Kostova R.D. – A pilot monitoring survey of the lesser blind mole-rat Nannospalax
(superspecies leucodon) (Mammalia: Rodentia) in Bulgaria — 107-112. PDF
Panayotova-Pencheva M. & Dakova V. – New data on helminth parasites of the stone marten Martes foina (Erxleben, 1777)(Carnivora: Mustelidae) in Bulgaria — 113-118. PDF
Christova I., Trifonova I., Panayotova E., Dimitrov H., Gladnishka T., Mitkovska V., Taseva E. & Gergova I. –
Hantaviruses in small mammals in two regions in Bulgaria — 119-123. PDF
Yıldırımtepe-Çaldıran F., Keskin A., Bursalı A. & Tekin Ş. – Molecular screening for Rickettsia, Francisella
and Borrelia in ticks collected from the middle Black Sea coastline, Turkey — 125-129. PDF
Mirchev P., Georgiev G., Zaemdzhikova G., Georgieva M. & Matova M. – Impact of egg parasitoids on pine
processionary moth Thaumetopoea pityocampa (Denis & Schiffermüller, 1775) (Lepidoptera: Notodontidae) in a new habitat — 131-134. PDF
Trichkova T. & Kvach Y. – In memoriam – Prof. Dr. Borys G. Aleksandrov, D.Sc. (17.04.1958 – 04.12.2019).
Talented marine biologist and invasive alien species scientist of Ukraine — 135-148. PDF
Radkhah A.R. & Eagderi S. – Del-Claro K. & Guillermo R. (Eds.) 2019. Aquatic Insects:
Behavior and Ecology. Springer International Publishing — 149-150. PDF
Editorial Acknowledgements to Reviewers, 2020 PDF