original description(ofHelix portoricensis L. Pfeiffer, 1847)Pfeiffer, L. (1847). Diagnosen neuer Heliceen. <em>Zeitschrift für Malakozoologie. Cassel.</em> 4 (1): 12-16 [January 1847]; 4 (2): 31-32 [February 1847]; 4 (5): 65-71 [May 1847]; 4 (6): 81-84 [June 1847] [containing descriptions of species by other authors]., available online athttps://www.biodiversitylibrary.org/page/16292006 page(s): 13 [details]
basis of recordMartens, E. von. (1877). Land- und Süsswasser-Schnecken von Puerto Rico. <em>Jahrbücher der Deutschen Malakozoologischen Gesellschaft.</em> 4(3): 340-362, pl. 12., available online athttps://www.biodiversitylibrary.org/page/16297195 page(s): 355 [details]
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