Localidade tipo: “Central Peru, Río Monzón, 670 m, near ist confluence with Río Huallaga, not far from Tingo Maria”
Altitude: 670 m
Nome original:Naesiotus gracillimus Weyrauch, 1956
Fotos: (1) Senckenberg Natural History Museum, Frankfurt: HOLOTYPE SMF 155696, “Central Peru, Río Monzón, 670 m, near ist confluence with Río Huallaga, not far from Tingo Maria”
Fontes:
Descrição original: Weyrauch, W. K. (1956). The genus Naesiotus, with description of new species and notes on other Peruvian Bulimulidae. Proceedings of the Academy of Natural Sciences of Philadelphia. 108: 1-17. Philadelphia.
página(s): 6, pl. 1, fig. 3