Breure, A.S.H. & Borrero, F.J. (2008) An annotated checklist of the land snail family Orthalicidae (Gastropoda: Pulmonata: Orthalicoidea) in Ecuador, with notes on the distribution of the mainland species. Zootaxa, 1768 (1), 1–40.
https://doi.org/10.11646/zootaxa.1768.1.1