Taxonomic review of Ophiothrix Müller & Troschel, 1840 (Echinodermata Ophiuroidea) from Brazil, with the description of four new species Author Santana, Alisson Author Manso, Cynthia L. C. Laboratório de Invertebrados Marinhos, Departamento de Biociências, Universidade Federal de Sergipe (UFS), Itabaiana, SE, 49500 - 000, Brazil. cynthialaramanso @ gmail. com; https: // orcid. org / 0000 - 0002 - 7382 - 3484 Author Almeida, Ana C. S. Author Alves, Orane F. S. text Zootaxa 2020 2020-07-01 4808 1 51 78 journal article 10.11646/zootaxa.4808.1.3 1175-5326 3927901 242EEAFF-0966-48A2-9D13-7FF52DDE61A5 Key to Ophiothrix species from Brazil 1a Radial shields covered by spines......................................................................... 2 1b Radial shields naked.................................................................................. 5 2a First dorsal arm plate with small spines...................................................... O. tommasii n. sp. 2b Dorsal arm plates without spines......................................................................... 3 3a Interradial dorsal disc covered by long spines.............................................. O. spiniformis n. sp. 3b Interradial dorsal disc covered by short spines.............................................................. 4 4a Dorsal arm plates triangular, with a medial ridge.................................................. O. trindadensis 4b Dorsal arm plates lozenge, without a medial ridge........................................... O. brasiliensis n. sp. 5a Disc covered with long needle-shapped spines..................................................... O. suensoni 5b Disc covered with short spines.......................................................................... 6 6a Interradial dorsal disc covered by long conical spines.......................................... O. troscheli n. sp. 6b Interradial dorsal disc covered by short bifid and trifid spines......................................... O. rathbuni