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Planorbella
Planorbella is a genus of freshwater air-breathing snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral, or left-coiling, shells. The Planorbella genus is not known to be colonial but are very plentiful and occur in large groupings. This genus is commonly found within North America, and is also found within various countries in Europe, including Iceland, Spain, Germany, France, Ukraine, and others. Over time, an increased amount of unintentional releases of the snails has led to Planorbella being found in more non-native areas like Siberia. Some of the earliest fossil records date back to the Miocene.
18 branches of this genus, most-observed first
Marsh Ramshorn
speciesPlanorbella trivolvis
Bellmouth Ramshorn
speciesPlanorbella campanulata
Seminole Ramshorn
speciesPlanorbella duryi
File Ramshorn
speciesPlanorbella pilsbryi
Mesa Ramshorn
speciesPlanorbella scalaris
Rough Ramshorn
speciesPlanorbella subcrenata
Borax Lake Rams-horn
speciesPlanorbella oregonensis
Corpulent Ramshorn
speciesPlanorbella corpulenta
Mexican Ramshorn
speciesPlanorbella tenuis
Planorbella smithii
speciesPlanorbella smithii
Coarse Ramshorn
speciesPlanorbella binneyi
Druid Ramshorn
speciesPlanorbella truncata
Acorn Ramshorn
speciesPlanorbella multivolvis
Planorbella contrerasi
speciesPlanorbella contrerasi
Magnificent Ramshorn
speciesPlanorbella magnifica
Fine-lined Ramshorn
speciesPlanorbella occidentalis
Jupiter Ramshorn
speciesPlanorbella ammon
Caribou Ramshorn
speciesPlanorbella columbiensis
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 Planorbella 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 91113.