original description
Quadras, J. F.; Möllendorf, O.F. von. (1896). Diagnoses specierum novarum ex insulis Philippinis. <em>Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft.</em> 28 (7/8): 81-93. Frankfurt am Main., available online at https://biodiversitylibrary.org/page/15601922
page(s): 87 [details]
additional source
Möllendorff, O. F. von. (1898). Verzeichnis der auf den Philippinen lebenden Landmollusken. <em>Abhandlungen der Naturforschenden Gesellschaft zu Görlitz.</em> 22: 26-208., available online at https://biodiversitylibrary.org/page/58468236
page(s): 123 [details]
From editor or global species database
Etymology Named for Rev. Fr. P. Casto de Elera (1852-1903), a Spanish Dominican friar and author of Catálogo Sistemático de toda Fauna de Filipinas, Mollusca in vol. III, 1896. [details]