Two New Species of Trematodes of the Genus Paragono (Trematoda:Troglotrematidae)

The present paper reports two new species of trematodes parasites belonging to Paragono Pearse,1930 (Troglotrematidae,Paragoninae).One was collected from a curlew,Numenius arquata orientalis Brehm and the other,from a herring gull,Larus argentatus vegae Palmen.Both were found in Tianjin.All measurements are in mm.The type specimens are deposited in Nankai University and the new species are characterized as follows.