1. Resident or visiting investigators at the Smithsonian Tropical Research Institute (STRI), Apartado 2072 Balboa, Republic of Panama.
2. Bermuda Biological Station for Research, Bermuda GEO1
3. Department of Zoology, University of California, Berkeley, CA 94720
4. University of California, Berkeley, Richard Gump Biological Research Station, B.P. 244 Temae, Moorea, French Polynesia
5. Department of Zoology, University of Texas, Austin, TX 78712, and Fundacion Cientifica Los Roques, Apartado 1, Caracas 1010A, Venezuela.