MADUWAGE, K.; SILVA, A.; MANAMENDRA-ARACHCHI, K.; PETHIYAGODA, R. A taxonomic revision of the South Asian hump-nosed pit vipers (Squamata: Viperidae: Hypnale). Zootaxa, Auckland, New Zealand, v. 2232, n. 1, p. 1–28, 2009. DOI: 10.11646/zootaxa.2232.1.1. Disponível em: https://mapress.com/zt/article/view/zootaxa.2232.1.1. Acesso em: 3 apr. 2025.