1. University Museum of Bergen, Allégt. 41, N-5020 Bergen, Norway
2. School of Biology & Environmental Science, University College Dublin, Belfield, Dublin 4, Ireland
3. Department Evolutionary Biology, Faculty of Natural Sciences, Kazimierz Wielki University, J.K. Chodkiewicza 30, PL-85-064 Bydgoszcz, Poland