Barrientos, Zaidett. “A New Genus of Semislugs (Stylommatophora: Euconulidae) from Costa Rica and a Review of the Genus Velifera (Stylommatophora: Euconulidae)”. Revista de Biología Tropical 67, no. 6 (December 1, 2019): 1313–1358. Accessed April 29, 2024. https://www.revistas.ucr.ac.cr/index.php/rbt/article/view/36105.