Are free-floating planktonic hydroids (Cnidaria, Hydrozoa) common components of the pelagic fauna from the South Brazilian Bight? - Cabral, Ana Caroline; Nogueira Júnior, Miodeli; Nagata, Renato Mitsuo; Brandini, Frederico Pereira (Journal of the Marine Biological Association of the United Kingdom (print), 2015)