Massaro, Fernanda Cristina, Natalia Felix Negreiros, and Odete Rocha. “A Search for Predators and Food Selectivity of Two Native Species of Hydra (Cnidaria: Hydrozoa) from Brazil”. Biota Neotropica 13, no. 2 (June 1, 2013). Accessed October 14, 2024. //www.biotaneotropica.org.br/BN/article/view/1246.