Bostryx granulatus is a species of tropical air-breathing land snail, a pulmonate gastropod mollusk in the family Bulimulidae.
The topotypes collected show that the granulation, which is visible in fresh collected specimens, fades away when the shells are bleached; otherwise these specimens are characteristic.[1]
Smaller specimens of Bostryx granulatus may also be compared to Bostryx superbus Weyrauch, 1967, a species living at higher altitudes in the same Río Cañete valley.[1] Bostryx granulatus however, may be distinguished by the slightly expanded base of the lip, the more slender shell shape and the granulation on the last whorl.[1]
This article incorporates CC-BY-3.0 text from the reference [1]