Petkovski, Trajan – Kostonic in the Natural History Museum of Macedonia – Skopje. The working life spent it in the Natural History Museum, as a researcher and a praiser of the fauna of the Ostrazda, Tsapoda and Cladocra of Macedonia and the Balkans. Described many types and subspecies from the above-mentioned organisms. He published more than 50 scientific papers in his field, of which the new species of the fauna of Macedonia are particularly important. He developed the problem of the specialication in the scene organisms, especially at the Candon dlece, which became known beyond the borders of the state. He is the concept of the permanent exhibition of invertebrates. R. Gr. Ordan Petlevski
Original article in Macedonian language Cyrillic alphabet
Кириличен напис ПЕТКОВСКИ, Трајан