Planorbella trivolvis

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Planorbella trivolvis
Planorbella trivolvis.jpg
Two specimen of Planorbella trivolvis in their natural environment, on aquatic vegetation
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Hygrophila
Superfamily: Planorboidea
Family: Planorbidae
Subfamily: Bulininae
Genus: Planorbella
Species: P. trivolvis
Binomial name
Planorbella trivolvis
(Say, 1817)
  • Helisoma trivolvis (Say, 1817)
  • Planorbis trivolvis Say, 1817 (original combination)

Helisoma trivolvis

Planorbella trivolvis is a species of freshwater air-breathing snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails, or planorbids, which all have sinistral or left-coiling shells.


All species within family Planorbidae have sinistral shells. The width of the shell of this species is up to 18 mm.


This pond snail is native to North America, from the Arctic areas of Canada all the way south to Florida. It has also been introduced in other parts of the world.


This species prefers habitats with floating water weeds.



  1. ^ 2006 IUCN Red List of Threatened Species. <>. Cited 5 March 2007.
  2. ^ Paraense W. L. (September 2003) "Planorbidae, Lymnaeidae and Physidae of Peru (Mollusca: Basommatophora)". Memórias do Instituto Oswaldo Cruz 98(6): 767-771. PDF
  3. ^ Reeves W. K., Dillon Jr. R. T. & Dasch G. A. (2008). "Freshwater snails (Mollusca: Gastropoda) from the Commonwealth of Dominica with a discussion of their roles in the transmission of parasites". American Malacological Bulletin 24: 59-63. doi:10.4003/0740-2783-24.1.59. PDF Archived 2010-01-07 at the Wayback Machine..
  4. ^ "Maintenance of the life cycle of Echinostoma trivolvis (Trematoda) in dexamethasone-treated ICR mice and laboratory-raised Helisoma trivolvis (Gastropoda)". doi:10.1007/s004360050200.

Further reading[edit]