Trypanosomes of brazilian fishes . Vi. Trypanosoma nutii sp.N from pacu-caranha piaractus mesopotamicus holmberg, 1887 (pisces, serrasalmidae) - Ribeiro, R D; Lopes, R A; Santos, H S L; Oliveira, C.; Zuim, S M F; Watanabe, Ii-Sei; Lima, E G (Revista Regional de Ciencias, 1993)