HONG, Y.; JAMES, S. W. New earthworms of the Pheretima urceolata species group (Oligochaeta: Megascolecidae) from southern Luzon, Philippines. Zootaxa, Auckland, New Zealand, v. 2059, n. 1, p. 33–45, 2009. DOI: 10.11646/zootaxa.2059.1.3. Disponível em: https://mapress.com/zt/article/view/zootaxa.2059.1.3. Acesso em: 4 apr. 2025.