Eduardo Calderón sent me two photographs for identification. Although the shell height was not mentioned in any way, the figures combined with the locality where the specimen was found (Colombia, near Cali, in a cloud forest at El Faro, ca. 1800 m) makes me think this is likely Rhodea gigantea Mousson, 1873. See also Grego et al. (2007).
Grego, J., Steffek, J. & Infante, A.P., 2007. Review of the genus Rhodea (Gastropoda, Pulmonata, Subulinidae), with description of two new species from Colombia. – Basteria, 71: 13-28.