-34.433334, -7.133333: 10 Treatments

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Ophiothrix tommasi   n. sp.  Santana, Alisson, Manso, Cynthia L. C., Almeida, Ana C. S. & Alves, Orane F. S., 2020, Taxonomic review of Ophiothrix Müller & Troschel, 1840 (Echinodermata Ophiuroidea) from Brazil, with the description of four new species, Zootaxa 4808 (1), pp. 51-78: 77 77
Ophiothrix brasiliensis   n. sp.  Santana, Alisson, Manso, Cynthia L. C., Almeida, Ana C. S. & Alves, Orane F. S., 2020, Taxonomic review of Ophiothrix Müller & Troschel, 1840 (Echinodermata Ophiuroidea) from Brazil, with the description of four new species, Zootaxa 4808 (1), pp. 51-78: 75 75
Eucidaris tribuloides     Gondim, Anne Isabelley, Moura, Rafael Bendayan De, Christoffersen, Martin Lindsey & Dias, Thelma Lúcia Pereira, 2018, Taxonomic guide and historical review of echinoids (Echinodermata: Echinoidea) from northeastern Brazil, Zootaxa 4529 (1), pp. 1-72: 10-11 10-11
Eurypon oxychaetum   sp. nov.  Cavalcanti, Thaynã, Santos, George Garcia & Pinheiro, Ulisses, 2018, Description of three species of Eurypon Gray, 1867 (Raspailiidae: Demospongiae: Porifera) from the Western Atlantic and a name to replace the the secondary homonym Eurypon topsenti, Zootaxa 4388 (1), pp. 89-101: 91-93 91-93
Pagurus brevidactylus     Lima, Daniel, Tavares, Marcos & Jr, Joel Braga De Mendonça, 2019, Paguroids (Decapoda: Anomura: Diogenidae and Paguridae) of the remote oceanic Archipelago Trindade and Martin Vaz, off southeast Brazil, with new records, description of three new species and , Zootaxa 4694 (1), pp. 1-63: 37-40 37-40
Pagurus carmineus   sp. nov.  Lima, Daniel, Tavares, Marcos & Jr, Joel Braga De Mendonça, 2019, Paguroids (Decapoda: Anomura: Diogenidae and Paguridae) of the remote oceanic Archipelago Trindade and Martin Vaz, off southeast Brazil, with new records, description of three new species and , Zootaxa 4694 (1), pp. 1-63: 40-49 40-49
Dardanus venosus     Lima, Daniel, Tavares, Marcos & Jr, Joel Braga De Mendonça, 2019, Paguroids (Decapoda: Anomura: Diogenidae and Paguridae) of the remote oceanic Archipelago Trindade and Martin Vaz, off southeast Brazil, with new records, description of three new species and , Zootaxa 4694 (1), pp. 1-63: 14-19 14-19
Halichondria (Halichondria) marianae   sp. nov.  Santos, George Garcia, Nascimento, Elielton & Pinheiro, Ulisses, 2018, Halichondriidae Gray, 1867 from the Northeastern Brazil with description of a new species, Zootaxa 4379 (4), pp. 556-566: 558-562 558-562
Nototriphora decorata     Fernandes, Maurício Romulo & Pimenta, Alexandre Dias, 2020, Unraveling one of the ‘ Big Five’: update of the taxonomy of Triphoridae (Gastropoda, Triphoroidea) from Brazil, European Journal of Taxonomy 665, pp. 1-170: 152-156 152-156
Polysyncraton amethysteum     Oliveira, Livia M., Hoeksema, Bert W. & Rocha, Rosana M., 2019, Polysyncraton (Ascidiacea, Didemnidae): a re-examination of some specimens and descriptions of three new species, European Journal of Taxonomy 519, pp. 1-25: 4-10 4-10