CLASSE: GASTROPODA: TERRESTRE
FAMÍLIA: SCOLODONTINAE
ESPÉCIE: Zilchistrophia tridentata Weyrauch, 1960
Tamanho médio: 12 mm
Distribuição: Peru, Equador
Localidade tipo: “Mittel-Peru am Osthang der östlichen Anden: Bergwerk Pichita Caluga (2200 m), in Zuflußtal des Río Chanchamayo, im Ucayali-Becken, unter Stein in Steinhaufen, in dichtem, schattigem, immergrünem, subtropischem Nebelwald” (= In cloud forest around the Río Chanchamayo tributary (2200 m a.s.l.), East of the Andes,
central Peru)”
Nome original: Zilchistrophia tridentata Weyrauch, 1960
Redescrição:
Roosen, M. T.; Salvador, R. B.; Breure, A. S. (2025): “Shell whitish-transparent, with a strongly depressed spire. Early whorls smooth, later whorls sculptured with minute growth lines. No clear distinction between protoconch and teleoconch whorls. Whorl shouldered, with a weak angulation near the suture and another near the umbilicus. Aperture subcircular, with a simple peristome. Sets of three internal plicae are present, in the holotype only one set ½ whorl behind aperture. Umbilicus narrow, c. 34% of shell width.“
Fotos: (1,2) Roosen, M. T.; Salvador, R. B.; Breure, A. S. (2025): Senckenberg Naturmuseum, Frankfurt am Main, Germany: HOLOTYPE SMF 162006

Fontes:
Descrição original: Weyrauch, W. K. (1960). Zwanzig neue Landschnecken aus Peru. Archiv für Molluskenkunde. 89 (1/3): 23-48, pl. 3-6. Frankfurt am Main.
página(s): 27, plate 3, fig. 6
Páll-Gergely, B. & Asami, T. (2014). Description of two new Ecuadorian Zilchistrophia Weyrauch 1960, with the clarification of the systematic position of the genus based on anatomical data (Gastropoda: Stylommatophora: Scolodontidae). ZooKeys. 453: 1–17.
página(s): 3
Zilch, A. (1983). Die Typen und Typoide des Natur-Museums Senckenberg, 71: Mollusca: Streptaxacea (2): Haplotrematidae, Systrophiidae, Rhytididae, Streptaxidae (Nachträge zu Teil 24). Archiv für Molluskenkunde. 113 (1/6): 117–149; 231–233, Taf. 11–13.
página(s): 121
Roosen, M. T.; Salvador, R. B.; Breure, A. S. (2025). Revision of the genera of Scolodontidae, part 3: Entodina Ancey, 1887, Keranella gen. nov., Martinella Jousseaume, 1887, †Patagocharopa Miquel & P.E. Rodriguez, 2016, Polygyratia Gray, 1847, Ridleyconcha Christensen, 2020, Smenodonta gen. nov., Systrophia L. Pfeiffer, 1855, and Zilchistrophia Weyrauch, 1960. Journal of Conchology. 45(3): 430-449., disponível online em https://doi.org/10.61733/jconch/4536
página(s): 444, fig. 10
Molluscabase: https://molluscabase.org/aphia.php?p=taxdetails&id=1337352