| Supplement 6Distribution of freshwater Decapoda (Crustacea: Malacostraca) in Bulgaria |
| Supplement 5Aurochs (Bos primigenius Bojanos, 1827) (Artiodactyla - Mammalia) in the nature and culture of Bulgaria [in Bulgarian] |
 Supplement 4The Freshwater Clams from the Family Sphaeriidae (Mollusca: Bivalvia) in Bulgaria [in Bulgarian] |
| Supplement 3Faunistic diversity of Vrachanski Balkan Nature Park |
 Supplement 2Zoogeography of Bulgaria. Bibliography. Scroll 2 [in Bulgarian] |
| Supplement 1On the family Mycetophilidae (Insecta: Diptera) in Bulgaria |
