Nome original:Bulinus calvus G. B. Sowerby I, 1833
Sinônimos: Bulimulus (Naesiotus) calvus (G. B. Sowerby I, 1833)
Fotos: (1) Senckenberg Natural History Museum, Frankfurt: SYNTYPE SMF 9970, Ilha James, Galápagos, 13.7 mm; (2) Museu Nacional de História Natural, Paris: SYNTYPE MNHN-IM-2000-28018, “Found on dried tufts of grass on James’s, one of the Galapagos Islands”, Coll. Férussac 1837, Coll. Cuming- Parreys, 13.5mm
Fontes:
Descrição original: (comoBulinus calvus G. B. Sowerby I, 1833)Sowerby, G. B. I; Sowerby, G. B. II. (1832-1841). The Conchological Illustrations; or coloured figures of hitherto unfigured Recent shells. London, privately published. 200 pls. in 200 parts.
página(s): 34, fig. 41