Traits taxon details
original description
(of Helix (Caseolus) sphaerula R. T. Lowe, 1852 †) Lowe, R. T. (1852). Brief diagnostic notices of new Maderan land shells. <em>The Annals and Magazine of Natural History.</em> (2) 9 (50): 112-120; (2) 9 (52): 275-279. London [1 February; 1 April]., available online at https://www.biodiversitylibrary.org/page/2362893 page(s): 115-116 [details] 
original description
(of Helix (Actinella) sphaerula var. majuscula Paiva, 1867 †) Paiva, [A. da Costa]. (1867). Monographia molluscorum terrestrium, fluviatilum, lacustrium insularum Maderensium. <em>Memorias da Académia Real das Sciências de Lisboa, Classe de Sciências Mathemáticas, Physicas e Naturaes.</em> new ser., 4(1): i-xix, 1-168, 1-2, pls 1-2., available online at https://www.biodiversitylibrary.org/page/4591929 page(s): 44 [details]
From editor or global species database
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