haplorchis taichui haplorchis taichui haplorchis taichui is a species of intestinal fluke in the family heterophyidae. it is a human parasite. haplorchis taichui scientific classification kingdom: animalia phylum: platyhelminthes class: trematoda subclass: digenea order: opisthorchiida suborder: opisthorchiata superfamily: opisthorchioidea family: heterophyidae genus: haplorchis species: h. taichui binomial name haplorchis taichui(nishigori, 1924) synonyms monorchotrema taichui nishigori, 1924 monorchotrema microrchia katsuda, 1932 haplorchis microrchis yamaguti, 1958 distribution this species occurs in: taiwan, the philippines, bangladesh, india, sri lanka, palestine, iraq, egypt, malaysia, thailand, laos, vietnam, and south china. life cycle the first intermediate hosts of heterophyes nocens include freshwater snails melania obliquegranosa, stenomelania juncea, and melanoides tuberculata. the second intermediate host include freshwater fish: cyclocheilichthys repasson, goldfish carassius auratus, cyprinus carpio, gambusia affinis, hampala dispar, labiobarbus leptocheilus, puntius binotatus, puntius brevis, puntius gonionotus, javean barb, barbodes palata, pseudorasbora parva, rhodeus ocellatus, zacco platypus, raiamas guttatus, mystacoleucus marginatus, and siamese mud carp henicorhynchus siamensis. natural definitive hosts are fish-eating animals: dogs, cats, birds, and humans. effects on human health symptoms diagnosis and treatment oxyresveratrol, a stilbenoid found in extracts of artocarpus lakoocha is effective against haplorchis taichui.