1. Department of Organismic and Evolutionary Biology; Harvard University; Cambridge MA U.S.A.
2. Museum of Comparative Zoology; Harvard University; Cambridge MA U.S.A.
3. Museum of Natural History and Archaeology; Norwegian University of Science and Technology; Trondheim Norway
4. Department of Geography; University of Wisconsin; Madison WI U.S.A.
5. Iziko South African Museum; Cape Town South Africa