CLASSE: GASTROPODA: TERRESTRE
FAMÍLIA: BULIMULIDAE
ESPÉCIE: Naesiotus saeronius (Dall, 1917)
Tamanho médio: 7 mm
Ocorrência: Ilha de Santa Cruz, Arquipélago de Galápagos, Equador
Localidade tipo: Equador, “Indefatigable Island, Galapagos group”
Nome original: Bulimulus (Naesiotus) saeronius Dall, 1917
Descrição original:
(Dall, 1910): “Shell very small, smooth, short-conic, the last whorl much the largest, five-whorled, the apex dimpled, the apical whorl delicately transversely striated, the suture deep, widening and becoming channelled on the last whorl; the whorl in front of it minutely crenulately marginated; color pale straw yellow, with an obscure, darker, narrow peripheral band on the last whorl; base rounded, more or less transversely wrinkled, with a narrow umbilical perforation; margin of aperture continuous, sharp, expanded, internally thickened; pillar lip white, very solid, with a prominent median tubercle; body with a relatively large, prominent tooth, which is but little prolonged into the interior of the whorl; the outer lip has no callosity. Height, 7.0; max. diameter. 4.5; height of last whorl, 4.5; of the aperture, 3 mm.”
Fotos: (1-3) Naesiotus saeronius (Dall, 1917): Smithsonian National Museum of Natural History, HOLOTYPE USNM 274097, Indefatigable Island, Galapagos group, navio: Albatross R/V

Fontes:
Descrição original: (como Bulimulus (Naesiotus) saeronius Dall, 1917) Dall, W. H. (1917). New Bulimulus from the Galapagos and Peru. Proceedings of the Biological Society of Washington. 30: 9-12., disponível online em https://www.biodiversitylibrary.org/page/3335012
página(s): 9
MolluscaBase: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1758408