Ключевые слова: adults, anatomy, background, biological, biology, cell, cercaria, cercariae, cerithioidea, dead, egg, environment, fishes, flat, food, freshwater, health, health care, human, infected, intestine, isolated, larva, larval, larval stages, macro, meat, medical, medicine, microscope, microscopic, microscopic view, new species, parasite, parasitic, patterns, raw, science, scientific, snail, stages, sucker, thailand, thiaridae, transversotrema, trematoda, under, white, worms, zoological,