MOOI, R.; NOORDENBURG, H. V. A new species and comparative morphology of Philippine sea biscuits (Echinoidea: Clypeaster). Zootaxa, Auckland, New Zealand, v. 4964, n. 1, p. 1–36, 2021. DOI: 10.11646/zootaxa.4964.1.1. Disponível em: https://www.mapress.com/zt/article/view/zootaxa.4964.1.1. Acesso em: 4 jul. 2025.