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Alcadia hjalmarsoni
Species of gastropod From Wikipedia, the free encyclopedia
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Alcadia hjalmarsoni is a species of an operculate land snail, terrestrial gastropod mollusk in the family Helicinidae.[1]
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Description
The height of the shell attains 5 mm, its greatest diameter 8 mm.
(Original description in Latin) The conoid-depressed shell is somewhat solid, smooth and slightly shiny. It is tawny with a purplish tint near the suture and aperture. The spire is convex and somewhat pointed. There are 4 whorls, which are somewhat flat and gradually increase in size. The body whorl is depressingly rounded with an arched fissure near the columella. The aperture is nearly diagonal and somewhat semi-oval. The columella descends at a right angle from the base, is slightly twisted, and scarcely recedes, emitting a thin, defined callus. The peristome is obtuse and yellow-bordered, with the right margin slightly curved forward. The operculum is thin and tawny.[2]
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Distribution
This species occurs in Puerto Rico.[1]
References
Further reading
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