Aquatic Parasite Observatory

Helisoma trivolvis (Say, 1817)

• Binomial Species Name: Helisoma trivolvis (Say, 1817)
• Synonyms: lanorbella trivolvis
• Common Name: None
• Taxonomy: Animalia, Mollusca, Gastropoda, Basommatophora, Planorbidae, Helisoma trivolvis
• APO Parasite Records:

Parasite Species	Life Stage	Site(s) of Infection
Alaria spp.	Sporocyst & Cercaria	Gonad tissue
Allassostomoides spp.	Redia & Cercaria	Gonad tissue
Clinostomum spp.	Redia & Cercaria	Gonad tissue
Echinostoma spp.	Metacercaria	Saccular Kidneys
Echinostoma spp.	Redia & Cercaria	Gonad Tissue
Halipegus occidualis	Redia & Cercaria	Gonad tissue
Megalodiscus spp.	Redia & Cercaria	Gonad tissue
Ribeiroia ondatrae	Redia & Cercaria	Skin, connective tissue, muscle
Zygocotyle spp.	Redia & Cercaria	Gonad tissue

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