Intranuclear iron bodies in tropical sea urchins(Lytechinus variegatus and Equinometria lucunter) and antartic sea urchin (Sterechinus neumayeri) Phagocytic amoebocytes (PA) - Borges, J C S; Mangiaterra, M B B C D; Jensch Jr, B E J; Porto-Neto, L R; Silva, José Roberto Machado Cunha da (Seminário sobre Pesquisa Antártica, 2001)