• [Wiki] https://en.wikipedia.org/wiki/Clypeaster.
• [ADW] http://animaldiversity.org/accounts/Clypeaster_subdepressus/.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [Sera1970] Serafy, D. K. (21970). A new species of Clypeaster from the Gulf and Caribbean and a key to the species in the tropical Northwestern Atlantic (Echinodermata: Echinoidea). Technical report, University of Miami, Rosenstiel School of Marine and Atmospheric Sciences, and Florida Department of Natural Resources, Marine Research Laboratory.
• [VellMigo2010] Vellutini, B. C. and Migotto, A. E. (2010). Embryonic, larval, and juvenile development of the sea biscuit Clypeaster subdepressus (Echinodermata: Clypeasteroida). PLoS ONE, 5(3):e9654. doi:10.1371/journal.pone.0009654.