… Petar Beron initiated an ambitious project for publishing regional reviews summarizing data
about the most interesting parts of Bulgaria and adjacent areas (flora, fauna, zoogeography …

The purpose of this paper is to help us to acquire a better understanding of one of the great
geniuses of the Bulgarian Renaissance who is mostly famous for his Fish Primer (1824). …

The classical zoogeographical subdivision of the land fauna, done by Sclater and Wallace
in the nineteenth century, is still “official” in our time. This subdivision has been based on …

Petar Beron Sc.D worked at the Institute of Zoology and the National Museum of Natural
History at the Bulgarian Academy of Sciences as a biologist from 1963 to 2010. Specializing in …

Almost all Rhinonyssidae live in the nare passages of birds. One (Sternostoma tracheacolum
Lawrence) has been found in the tracheae and lungs of birds and some Ptilonyssus have …

An attempt is made to compare the available data on the cave fauna of SE Asia with the cave
fauna of New Guinea and the Bismarck Archipelago. The information is very uneven, with …

The land Isopoda are relatively rare in high altitude. Only 132 species (as far as we know)
have been recorded from places higher than 2200 m. Here under „Old World" we understand …

The biospeleological studies in the Rhodopes started in 1924 and until 1959 concerned
only the western part of the mountain. Altogether over 600 caves and potholes are hitherto …

The monograph of Beron (2008) is completed with the data in 166 papers published between
2008 and 2016 (some of them in 2017), or omitted. Many new taxa have been published, …

On the relatively small territory of Bulgaria are situated entirely or in part 8 mountains with
altitude over 2000 m. Rila (Mussala, 2925 m) is the highest moun-tain between the Alps and …