Cytogenetic identification of two fish species Leporinus macrocephalus and Leporinus cf. obtusidens, and their hybrid using chromosome markers - Porto-Foresti, Fabio; Hashimoto, Diogo; Alves, Anderson; Castilho-Almeida, Rodrigo; Senhorini, Jose; Bortolozzi, Jehud; Foresti, Fausto (Springer, 2007)