original description
(of Helix obolus A. Gould, 1846) Gould, A. A. (1846). Descriptions of new shells, collected by the United States Exploring Expedition. <em>Proceedings of the Boston Society of Natural History.</em> 2: 141-145, 148-152 [July]; 153-156, 159-162, 165-167 [August]; 170-173, 175-176 [September]; 177-179, 180-184, 185-187, 190-192 [November]., available online at https://www.biodiversitylibrary.org/page/9490825
page(s): 175. [details]
original description
(of Helix acetabulum Pease, 1861) Pease, W. H. (1861). Descriptions of new species of Mollusca from the Pacific islands. <em>Proceedings of the Zoological Society of London.</em> (1861): 242-247., available online at https://www.biodiversitylibrary.org/page/28672772
page(s): 242-243 [details]
original description
(of Pithys celsa Pease, 1871) Pease, W. H. (1871). Remarques sur certaines espèces de coquilles terrestres, habitant la Polynésie, et description d'espèces nouvelles. <em>Journal de Conchyliologie.</em> 18(4): 393-403 ["1870"; published 22 January 1871]., available online at https://www.biodiversitylibrary.org/page/15160812
page(s): 396; note: As Pithys ? celsa [details]
basis of record
Solem, A. (1976). Endodontoid land snails from Pacific Islands (Mollusca: Pulmonata: Sigmurethra). Part I, Family Endodontidae. <em>Fieldiana. Zoology.</em> 508 pp. Chicago., available online at https://www.biodiversitylibrary.org/page/2642619 [details]
From editor or global species database