MARINKELLE, C. J. Notes on Colombian Opalinids. I. <i>Opalina</i>, <i>Zelleriella</i>, and <i>Cepedea</i>. Revista de Biología Tropical, [S. l.], v. 13, n. 2, p. 203–206, 1965. DOI: 10.15517/rev.biol.trop.1965.28632. Disponível em: https://revistas.ucr.ac.cr/index.php/rbt/article/view/28632. Acesso em: 19 may. 2024.