ALONSO, M. R.; IBÁÑEZ, M.

Anatomy and function of the penial twin papillae system of the Helicinae  (Gastropoda: Helicoidea: Helicidae) and description of two new, small Hemicycla species from the laurel forest of the Canary Islands 

. Zootaxa, Auckland, New Zealand, v. 1482, n. 1, p. 1–23, 2007. DOI: 10.11646/zootaxa.1482.1.1. Disponível em: https://www.mapress.com/zt/article/view/zootaxa.1482.1.1. Acesso em: 7 jun. 2025.