Trypanosomes of brazilian fishes. Ix. Trypanosoma pintoi sp. N. From armored catfish hypostomus sp. (Pisces, loricariidae) from mogi-guacu river, municipality of pitangueiras, sp, brazil - Ribeiro, R D; Lopes, R A; Satake, T; Nuti Sobrinho, A; Britski, Heraldo A (Revista Brasileira de Biologia, 1990)