Planorbella_trivolvis Knowpia

Planorbella trivolvis
	Two specimen of Planorbella trivolvis in their natural environment, on aquatic vegetation
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Heterobranchia
Superorder:	Hygrophila
Family:	Planorbidae
Genus:	Planorbella
Species:	P. trivolvis
Binomial name
	Planorbella trivolvis; (Say, 1817)
Synonyms
	Helisoma trivolvis (Say, 1817); Planorbis trivolvis Say, 1817 (original combination);

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.

Description edit

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

Distribution edit

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.

Peru^[1]
Dominica^[2]

Habitat edit

This species prefers habitats with floating water weeds.

Parasites edit

Planorbella trivolvis is an intermediate host for Echinostoma trivolvis.^[3]

References edit

^ Paraense W. L. (September 2003) "Planorbidae, Lymnaeidae and Physidae of Peru (Mollusca: Basommatophora)". Memórias do Instituto Oswaldo Cruz 98(6): 767-771. PDF
^ 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.
^ "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

CYNTHIA G. NORTON & JENNIFER M. BRONSON (2006) "THE RELATIONSHIP OF BODY SIZE AND GROWTH TO EGG PRODUCTION IN THE HERMAPHRODITIC FRESHWATER SNAIL, HELISOMA TRIVOLVIS". Journal of Molluscan Studies 72(2): 143-147. doi:10.1093/mollus/eyi057
Norton C. G., Johnson A. F. & Mueller R. L. (2008) "Relative size influences gender role in the freshwater hermaphroditic snail, Helisoma trivolvis". Behavioral Ecology 19(6): 1122-1127. doi:10.1093/beheco/arn099
[1]
[2]
[3]
Johnson, P. D.; Bogan, A. E.; Brown, K. M.; Burkhead, N. M.; Cordeiro, J. R.; Garner, J. T.; Hartfield, P. D.; Lepitzki, D. A. W.; Mackie, G. L.; ; Tarpley, T. A.; Tiemann, J. S.; Whelan, N. V.; Strong, E. E. (2013). Conservation status of freshwater gastropods. of Canada and the United States. Fisheries. 38(6): 247-282

[Paraense2003-1] Paraense W. L. (September 2003) "Planorbidae, Lymnaeidae and Physidae of Peru (Mollusca: Basommatophora)". Memórias do Instituto Oswaldo Cruz 98(6): 767-771. PDF

[Reeves_2008-2] 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.

[3] "Maintenance of the life cycle of Echinostoma trivolvis (Trematoda) in dexamethasone-treated ICR mice and laboratory-raised Helisoma trivolvis (Gastropoda)". doi:10.1007/s004360050200.

[1]

[2]

[3]