Sinônimos: Drillia rioensis E. A. Smith, 1915; Lioglyphostoma rioensis (E. A. Smith, 1915)
Descrição original: Smith, E. A. (1915). Mollusca. Part I. – Gastropoda Prosobranchia, Scaphopoda and Pelecypoda. British Antarctic Terra Nova Expedition, Natural History Reports (Zoology). 2(4): 61-112, pls 1-2., available online at https://www.biodiversitylibrary.org/page/965528page(s): 95, pl. 2, fig. 12