Myxobolus cuneus n. sp. (Myxosporea) infecting the connective tissue of Piaractus mesopotamicus (Pisces: Characidae) in Brazil: histopathology and ultrastructureE.A. Adriano, S. Arana and N.S. CordeiroParasite, 13 2 (2006) 137-142DOI: https://doi.org/10.1051/parasite/2006132137