This paper presents a new identified species belonging to Lepocreadiidae.The type specimens are deposited in Department of Biology, Nankai University, Ti- anjin. Lepocreadioides cynoglossi sp.nov.(fig.) The measure is given in millimeters. Qiu Zhaozhi Zhang Runsheng Li Qinkui Body oval, 2.042—2.062 long, 1.455—1.749 in maximum wide. Oral sucker su- bterminal, 0.202—0.212×0.152—0.192. Pharynx 0.081—0.101×0.121—0.152. Esop- hagus short,ceca reaching to near posterior end of the body,Acetabulum 0.283- 0.324×0.222—0.234, situated at somewhat anterior of equater line. Testes sausage like, diagonal, left testis 0.455—0.597×0.111—0.121, right te- stis 0.404—0.485×0.101—0.121. Cirrus pouch saccular, enclosing seminal vesicle, prostatic complex and cirrus. External seminal vesicle preacetabulum, 0.234—0.283 ×0.131—0.142, internal seminal vesicle 0.152—0.192×0.111—0.131. Genital pore on left side of oral sucker. ovary trilobate,0.293—0.303×0.101—0.121,situated at anterior margin of left testis. Seminal receptacle oval 0.313—0.333×0.121—0.142, behind the aceta- bulum. Uterus extending from ovary to metraterm. Vitelline follicles extending from bifurcating level to near posterior end of the body. Eggs 0.038—0.066×0.028— 0.033. This species most closely resembles L.indicus Srivastava, 1941 and L.cynoglossi Fischal et Thomas, 1970, but differs from them in: (1) size of the body, (2) tatio of the suckers, (3) position of the acetabulum, (4) shape and size of the testes, (5) position of the seminal receptacle and uterus. Host: Cynoglossus semilaevis Location: intestine Date: April, 1985 Locality: Bohai Sea, Tianjin, China Type specimen: 1, paratype specimen 8.