Oliveira, O. M. P. de, A. C. Marques, and A. E. Migotto. “Identification Key for the Epiphytic Hydroids (Cnidaria, Hydrozoa) from the São Sebastião Channel (SE Brazil)”. Biota Neotropica, vol. 6, no. 2, Jan. 2006, //www.biotaneotropica.org.br/BN/article/view/218.