website: <a href="http://www.cbif.gc.ca/itisca/">ITIS*<sup>ca</sup></a>;
website: <a href="http://www.cria.org.br/">CRIA-Brazil</a>;
database: NODC Taxonomic Code;
document: ITIS & Species 2000 Catalogue of Life Management Hierarchy; M. Ruggiero & D. Gordon, eds. 2013. Consensus Management Hierarchy for the ITIS & Species2000 Catalogue of Life. Contributors: Nicolas Bailly, Thierry Bourgoin, Richard Brusca, Thomas Cavalier-Smith, Daphne Fautin, Dennis Gordon, Gerald Guala, Michael Guiry, Paul Kirk, Elliot Lefkowitz, David Mabberly, David Maddison, Alan Paton, Michael Ruggiero, Peter Stevens, and Brian Tyndall
Brusca, Richard C., and Gary J. Brusca 2002-01-01. Invertebrates, Second Edition. Sinauer Associates, Inc.. Sunderland, Massachusetts, USA. xx + 936. 0-87893-097-3. .
Clark, Ailsa M., and Maureen E. Downey 1992-01-01. Starfishes of the Atlantic. Chapman and Hall. New York, New York, USA. xxvi + 794. 0-412-43280-3. .