Animals 8 Cestoda 8 Elasmobranchii 8 cestode 8 elasmobranch Argentina 6 Cestode Infections 6 Fish Diseases 6 animal 6 classification 6 isolation and purification 6 parasitology 6 Atlantic Ocean 4 Female 4 Skates (Fish) 4 Teleostei 4 article 4 nonhuman 4 ultrastructure 4 Acanthobothrium 2 Acanthobothrium stefaniae 2 Acanthobothrium stefaniae sp. n 2 Acanthobothrium zapterycum 2 Article 2 Batoidea 2 Bovichthyidae 2 Carcharhiniformes 2 Cheilodactylidae 2 Chondrichthyes 2 Discopyge tschudii 2