Naesiotus trogonius (Dall, 1917)

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: BULIMULIDAE

ESPÉCIE: Naesiotus trogonius (Dall, 1917)

Tamanho médio: 7 mm 

Ocorrência: Ilha de Isabela, Arquipélago de Galápagos, Equador

Localidade tipo: “Albemarle Island, Galapagos group, at an altitude of about 1300 feet above the sea”

Altitude: 400 m

Nome original: Bulimulus (Naesiotus) trogonius Dall, 1917

Sinônimos: Bulimulus trogonius Dall, 1917

Descrição original:

(Dall, 1917): “Shell small, olivaceous, with five and a half whorls separated by a very distinct suture ; pupiform, with a rather blunt dimpled apex, the initial whorl conspicuously transversely striated ; sculpture of minute regular transverse (or axial) wrinkles crossed by microscopic spiral bands where the wrinkles are interrupted or modified ; last whorl subcylindric, much the largest; base attenuated, with a minute umbilical chink; aperture small, simple, sharp-edged, the outer and pillar lips connected by a layer of callus; pillar short, stout, anteriorly subtruncate within the aperture. Height of shell, 7.0; of last whorl, 5.0; of aperture, 2.5; max. diameter of shell, 3.0 mm.”

Fotos: (1-3) Naesiotus trogonius (Dall, 1917): Smithsonian National Museum of Natural History, SYNTYPE USNM 274096, “Albemarle Island, Galapagos group, at an altitude of about 1300 feet above the sea. U. S. S. Albatross”, coletor: United States Fish Commission

Fontes:

Descrição original: (como Bulimulus (Naesiotus) trogonius 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): 10

Dall, W. H. & Ochsner, W. H. (1928). Landshells of the Galapagos Islands. Proceedings of the California Academy of Sciences. ser. 4, 17: 141-185., disponível online em https://www.biodiversitylibrary.org/page/3129330
página(s): 166

MolluscaBase: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1758469