| helminths of freshwater animals from five provinces in northern thailand. | seven species of fishes, 6 species of mollusks, 1 species of crab, and 1 species of shrimp were collected from 12 natural freshwater sites from 5 provinces: lumpang, phrae, phayao, chiang rai and chiang mai during the rainy season of 2000. fishes, channa striatus, dermogenus pusillus, oxyeleotris marmoratus, trichogaster trichopterus and trichopsis vittatus were examined for helminths and 34.69% (17/49) were infected. there were 2 genera of monogenean identified as follows: dactylogyrus and tria ... | 2001 | 12041591 |