1. National Centre for Biosystematics, Natural History Museum, University of Oslo,; P. O. Box 1172 Blindern, Oslo, 0318 Norway
2. Museum of Archaeology, University of Stavanger,; Stavanger, 4036 Norway
3. Department of Biological Sciences,; University at Buffalo (SUNY), Buffalo,; New York 14260, U. S. A.
4. Botanical Garden and Museum, Natural History Museum of Denmark, University of Copenhagen, Gothersgade; 130, Copenhagen K, 1123 Denmark