Dall, W. H. (1890). Scientific results of explorations by the U. S. Fish Commission Steamer “Albatross”. No. VII. Preliminary report on the collection of Mollusca and Brachiopoda obtained in 1887–'88. <em>Proceedings of the United States National Museum.</em> 12 (773): 219-362, pls 5-14., available online athttp://biodiversitylibrary.org/page/15738824 page(s): 307, pl. 6 fig. 4 [details]
Type locality contained in Galapagos Exclusive Economic Zone
type locality contained in Galapagos Exclusive Economic Zone [details]
MolluscaBase eds. (2025). MolluscaBase. Mangilia (Pleurotomella) agonia Dall, 1890. Accessed through: Glover, A.G.; Higgs, N.; Horton, T. (2025) World Register of Deep-Sea species (WoRDSS) at: https://marinespecies.org/deepsea/aphia.php?p=taxdetails&id=437072 on 2026-09-16
Glover, A.G.; Higgs, N.; Horton, T. (2026). World Register of Deep-Sea species (WoRDSS). Mangilia (Pleurotomella) agonia Dall, 1890. Accessed at: https://marinespecies.org/DeepSea/aphia.php?p=taxdetails&id=437072 on 2026-09-16
original descriptionDall, W. H. (1890). Scientific results of explorations by the U. S. Fish Commission Steamer “Albatross”. No. VII. Preliminary report on the collection of Mollusca and Brachiopoda obtained in 1887–'88. <em>Proceedings of the United States National Museum.</em> 12 (773): 219-362, pls 5-14., available online athttp://biodiversitylibrary.org/page/15738824 page(s): 307, pl. 6 fig. 4 [details]