- Animals
- ›Molluscs
- ›Gastropods
- ›Caenogastropods
- ›Littorinimorpha
- ›Spire Shells and Allies
- ›Spire-shells
- ›Alvania
Alvania purpurea
Alvania purpurea is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
From the article Alvania purpurea on Wikipedia (CC BY-SA), quoted section by section
Description
(Original description) The small shell consists of four rounded whorls that are rather pointed. The sculpture consists of six or seven revolving ribs. On the body whorl, only two appear on the second whorl. The apical whorl is smooth. These ribs are crossed by about twenty longitudinal riblets, which do not pass the second revolving rib on the body whorl. On the antepenultimate whorl they reach from suture to suture, and are conspicuously angulated at their intersections with the two evolving ribs. The suture is deep. The aperture is rounded and is interrupted by the body whorl. The peristome is thickened, with a groove behind the columella. The color of the shell is whitish, the revolving ribs in perfect specimens being a beautiful purple.
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Alvania purpurea in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 520938.