1. Department of Chemistry, University of Puerto Rico, P.O. Box 23346, U.P.R. Station, San Juan, Puerto Rico 00931-3346, Department of Systematic Biology & Laboratories of Analytical Biology, Smithsonian Institution, P.O. Box 37012, Washington, D.C. 20013-7012, Florida State University−Panamá, Cell and Molecular Biology of Pathogens Unit, Institute for Tropical Medicine and Health Sciences, La Boca 1034, Balboa, Ancón, Panamá, and Smithsonian Tropical Research Institute, P.O. Box 2072, Balboa, Ancón, Panamá