The Fasciola hepatica Lmneuus, 1758 and Fasciola g~gantica Cobbold, 1855 belongto Fasciola Linnaeus ,1758 of Fasciolidae Raillet , I 895.Both of them infect the ruminantand human ,so the loss caused by them is enormous .

• 片形吸虫属于片形科（Fasciolidae Raillet，1895）的片形属（Fasciola Linnaeus，1758）。