Tricula


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Tricula

(trik'yū-lă),
A genus of operculate freshwater snails related to Oncomelania (the Schistosoma japonicum as intermediate hosts) of the subfamily triculinae, family Hydrobiidae, subclass Prosobranchiata; it includes Tricula aperta, intermediate host of Schistosoma mekongi.
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Schistosomes causing human disease Schistosoma Intermediate species Geographical area snail host Haematobium Africa, Madagascar, Bulinus Zanzibar, Pemba, Middle East Intercalatum Central and West Africa Bulinus Mansoni Africa, Madagascar, Biomphalaria Gulf of Arabia, Brazil, Venezuela, Suriname, Caribbean Islands Japonicum China, Philippines Oncomelania mainland, Indonesia Mekongi Laos, Cambodia Tricula Egg Egg production characteristics (number/day) Terminal spine 20-200 Terminal spine Unknown Lateral spine 100-300 No spine 500-3 500 No spine Unknown Schistosoma species Location of adult worms Haematobium Terminal venules of the genitourinary system and pelvic plexus Intercalatum Pericolonic plexus Mansoni Pericolonic plexus Japonicum Pericolonic plexus Mekongi Pericolonic plexus