Kroh, A.; Mooi, R. (2024). World Echinoidea Database. Anorthopygus orbicularis (de Grateloup, 1836) †. Accessed at: https://www.marinespecies.org/Echinoidea/aphia.php?p=taxdetails&id=1460074 on 2024-04-20
basis of recordSchultz, H. (2005). Sea Urchins: a guide to worldwide shallow water species. <em>Heinke & Peter Schultz Partner, Hemdingen.</em> 484 pp. (look up in IMIS) page(s): 285; Fig. 545 (right) [details]