CLASSE: GASTROPODA: TERRESTRE
FAMÍLIA: CHAROPIDAE
ESPÉCIE: Perucharopa madrediosensis (Miquel & Ramírez, 2011)
Tamanho médio: ~1 mm
Distribuição: Peru, Departamento Madre de Dios
Altitude: 200–360 m
Localidade tipo: Peru, “Madre de Dios department, Manu province, Los Amigos Conservation Concession (LACC), Los Amigos Biological Station (CICRA) (12°34’07”S 70°05’57”W, 268 m”
Nome original: Stephadiscus madrediosensis Miquel & Ramírez, 2011
Etimologia: o nome da espécie é uma referência à localidade tipo
Descrição original:
(Miquel & Ramírez, 2011): “Shell minute (diameter:1 mm), orbicular, with 3.50 whorls; moderately elevated spire, apex scarcely protuding; subcircular descendent aperture; convex whorls; marked suture; umbilicus perspective (about 1/3 shell diameter); teleoconch with 110–120 axial ribs on the body whorl (53–57 per mm), and 10–12 irregular, spiral costulae (lirae), marked on umbilical view; protoconch with 1.75 whorls, costulated with nearly 30 heavy axial ribs; irregularly protoconch ends; translucent white color.”
Fotos: (1) (Miquel & Ramírez, 2011): Museo de Historia Natural de la Universidad Nacional Mayor de San Marcos, Lima, Peru, PARATYPE MUSM 4238b, vista frontal

Figura: (Miquel & Ramírez, 2011) (2–7): Perucharopa madrediosensis (Miquel & Ramírez, 2011): (2) HOLOTYPE MUSM 4238a, apical view; (3) PARATYPE MUSM 4238b, frontal view; (4) PARATYPE MUSM 4238b, umbilical view; (5) HOLOTYPE MUSM 4238ª, detail of protoconch; (6) HOLOTYPE MUSM 4238a, detail of ribs on last whorl; (7) PARATYPE MUSM 4238b, umbilical; (8-9) Stephadiscus sp. aff. S. testalbus; (8) MACN-Pi 4.918, apical view; (9) MACN-Pi 4.918, detail of protoconch; (10) Stephadiscus sp., MACN-Pi 4.917, apical view.
Fontes:
Descrição original: (como Stephadiscus madrediosensis Miquel & Ramírez, 2011) Miquel, S.E. & Ramírez, R. (2011). First records of actual and fossil Stephadiscus outside Patagonia, and description of a new Amazonian species (Mollusca: Pulmonata: Charopidae). Archiv für Molluskenkunde. 140(1): 49-56.
página(s): 51, figs 2-6
Miquel, S. E. & Araya, J. F. (2022). Re-description of genitalia of Stephacharopa and the description of a new Peruvian genus (Gastropoda, Stylommatophora, Charopidae). Spixiana. 45(1): 1-7.
page(s): figs 1c-f
Molluscabase: https://molluscabase.org/aphia.php?p=taxdetails&id=1618564