1. Museu de Zoologia da Universidade de São Paulo, Av. Nazaré, 481, Ipiranga, 04263-000 São Paulo, SP, Brazil; Email: (LAWP) ; (GMD) guilhermedutr@yahoo.com.br; (AD) adatovo@usp.br; and (NAM) naercio@usp.br. Send reprint requests to LAWP.
2. Division of Fishes, Department of Vertebrate Zoology, MRC-159, National Museum of Natural History, P.O. Box 37012, Smithsonian Institution, Washington, D.C. 20013-7012; Email: .