Descrição original: (como Helix isodon Reeve, 1853)Reeve, L. A. (1851-1854). Monograph of the genus Helix. In: Conchologia iconica, or, illustrations of the shells of molluscous animals, vol. 7, pls. 1-210 and unpaginated text. L. Reeve & Co., London. [publication dates: Feb. 1853; 151-154, Apr. 1853; 155-162, May 1853; 163-166, Jun. 1853; 167-170, Jul. 1853; 171-174, Oct. 1853; 175, 176, Apr. 1854; 177, May 1854; 178-185, Jun. 1854; 186-189, Jul. 1854; 190-193, Aug. 1854; 194, 195, Sept. 1854; 196-210, Dec. 1854]., disponível online em https://biodiversitylibrary.org/page/11120877
página(s): pl. 149, fig. 965
Solem, A. (1966). Neotropical land snail genera Labyrinthus and Isomeria (Pulmonata, Camaenidae). Fieldiana: Zoology. 50: 1-226., disponível online em https://biodiversitylibrary.org/page/2780997
página(s): 62
Rosenberg G (2026). Malacology Collection at the Academy of Natural Sciences of Philadelphia. Academy of Natural Sciences. Occurrence dataset https://doi.org/10.15468/xp1dhx accessed via GBIF.org on 2026-04-29. https://www.gbif.org/occurrence/215862961