1. Peruvian Centre for Cetacean Research/Centro Peruano de Estudios Cetológicos (CEPEC); Pucusana Lima 20 Peru
2. Forest & Bird New Zealand, 205 Victoria Street; Wellington New Zealand
3. Department of Marine Biology; Texas A&M University at Galveston, 200 Seawolf Parkway, Ocean and Coastal Sciences Building, Suite 102; Galveston Texas 77551 U.S.A
4. NOAA Fisheries, National Marine Fisheries Service, Southwest Fisheries Science Center, Granite Canyon Laboratory, 34500 Highway 1; Monterey California 93940 U.S.A
5. Fellow of the California Academy of Sciences, 55 Music Concourse Drive; San Francisco California 94118 U.S.A
6. NOAA Fisheries, National Marine Fisheries Service, Southwest Fisheries Science Center, 8901 La Jolla Shores Drive, La Jolla; California 92037 U.S.A
7. Curator Emeritus of Marine Mammals, Division of Mammals, Smithsonian Institution, NHB W613, MRC 108, PO Box 37012; Washington DC 20013-7012 U.S.A