Ruiz-Nava, M.-P., Conejeros-Vargas, C.-A. and Solís-Marín, F.-A. 2021. Redescription of the sea urchin Eucidaris thouarsii (Cidaroida: Cidaridae) based on material from the Mexican Pacific. Revista de Biología Tropical. 69, S1 (Mar. 2021), S438–S451. DOI:https://doi.org/10.15517/rbt.v69iSuppl.1.46383.