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Costate Vallonia
Vallonia costata
Vallonia costata is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Valloniidae....
From the article Vallonia costata on Wikipedia (CC BY-SA), quoted section by section
Description
For terms, see gastropod shell The 1.1-1.6 x 2.2-2.7 mm shell has 3.2-3.3 whorls. Whorls are slightly angular at the periphery with deep sutures. The shell is flat with regular and widely spaced ribs. The shell is striated between the ribs, the last whorl is descending. The almost circular aperture is oblique (inclined downwards) and in adult specimens broadly reflected. The lip is thickened and reflected. As in other Vallonia, the umbilicus is very wide. The shell is ivory-white. For differences from Vallonia pulchella see that species.
Range & habitat
This species occurs in countries and islands including:
Great Britain Ireland Czech Republic Slovakia Poland Netherlands Latvia Ukraine Canada and the United States and other areas
Wikipedia: “Distribution”
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 Vallonia costata 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 233380.