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  • Title: Crepidostomum percopsisi n. sp. (Digenea: Allocreadiidae) from the trout perch (Percopsis omiscomaycus) of Dauphin Lake, Canada.
    Author: Nelson PA, Choudhury A, Dick TA.
    Journal: J Parasitol; 1997 Dec; 83(6):1157-60. PubMed ID: 9406794.
    Abstract:
    Crepidostomum percopsisi n. sp. is described from the small intestine of the trout perch (Percopsis omiscomaycus) in Dauphin Lake, Manitoba. It is morphologically similar to Crepidostomum isostomum, which has been reported from the trout perch and several other species of fish. It differs from C. isostomum based on the vitellaria confined to the hindbody of the worm, size and shape of the cirrus, size of the testes, and its greater body length. A comparison of our specimens with those illustrated and identified as C. isostomum from trout perch indicates that such specimens are identical to larger specimens of C. percopsisi recovered by us from trout perch in May. To date, C. percopsisi has only been reported from the trout perch of Dauphin Lake, Lake Winnipeg, and Oneida Lake, which suggests host specificity.
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