>From Nelson: "Fishes of the World" Family TRICHOMYCTERIDAE - Parasitic Catfishes Freshwater; South America, Panama, and Costa Rica About 27 Genera with about 185 species, individuals in the genus Vandellia (a candiru) of Brazil are know to enter the urethra of humans with serious consequences. I have not located a specific name yet. Anyone have the TFH Catfish tome handy? I don't keep that book at work. Sean Murphy Fisheries Biologist ______________________________________________________