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  • Title: First North American record of the marine leech Notostomum laeve (Annelida: Hirudinea).
    Author: Burreson EM, Arthur JR.
    Journal: J Parasitol; 1994 Oct; 80(5):820-2. PubMed ID: 7931918.
    Abstract:
    The Arctic marine leech Notostomum laeve is reported for the first time from North America. A single, small specimen was collected in April 1990 on the external surface of 1 of 30 Greenland halibut Reinhardtius hippoglossoides from Cumberland Sound, Baffin Island, Northwest Territories, Canada. Total length of the specimen including suckers is 41 mm; maximum body width is 1.8 mm. The species is easily identified by the unusual suckers. The caudal sucker is divided into 2 lateral halves that appear to close somewhat like a clam shell; the oral sucker is very thick and muscular with a row of small, hard teeth-like papillae around the outer margin. On the basis of this report from northern Canada, N. laeve probably has a circumpolar distribution in the Arctic Ocean.
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