Frias Martins, A.
Neubert, E., Cuttelod, A. & Nichols, C.
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This species is widespread on São Miguel Island (Extent of occurrence = 760 km2), is found all types of forest habitat and faces no major threats, therefore it is considered as Least Concern (LC).
This species is only found on São Miguel island, Azores.
Napaeus pruninus is abundant in forested areas throughout São Miguel island. N. pruninusis very variable, the shell and the anatomy resembling sometimes either N. alabastrinus or N. tremulans. It appears also to be some introgression with N. vulgaris, already pointed out by Morelet (1860). The taxon is currently under revision, but here N. pruninus is taken in its current accepted form.
Napaeus pruninus prefers wooded areas, where it can be found under logs, amidst clumps of dried vegetation, buried in the soil, and sometimes climbing up the branches and leaves.
Although sometimes hard to find, this species is dispersed throughout the island in all types of forests; no threats are foreseen.
No conservation measures are needed.