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NORTHERN RANGE EXTENSIONS FOR TWO DECAPOD CRUSTACEANS, THE INFLATED SPINY CRAB ROCHINIA CRASSA (A. MILNE-EDWARDS, 1879) AND THE PURPLEHEAD GAMBA PRAWN ARISTEUS ANTILLENSIS A. MILNE-EDWARDS & BOUVIER, 1909, IN THE NORTHWESTERN ATLANTIC

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Northern range extensions are described for two large decapod crustaceans not previously recorded in the Canadian waters of the northwestern Atlantic. A male inflated spiny crab, Rochinia crassa, was captured by a crab trap in 1999 on the Scotian Shelf at 43°45.08′N 63°45.77′W at a depth of 243 m. This species was reported previously from south of Marthas Vineyard, Massachusetts (U.S.A.) to Cuba. A female purplehead gamba prawn, Aristeus antillensis, was captured by a shrimp trawl near the southwest edge of the Grand Bank at 44°06.5′N 52°57.8′W at a depth of 652 m. Previous distribution records range from off Nantucket, Massachusetts to French Guiana.

Des extensions de distribution vers le nord ont été signalées pour deux espèces de crustacés décapodes qui n'ont pas été décrites auparavant dans les eaux atlantiques canadiennes. Un mâle du crabe épineux, Rochinia crassa, a été capturé dans un casier à crabe en 1999 sur le plateau néoécossais à 43°45.08′N 63°45.77′W à la profondeur de 243 m. Cette espèce a été signalée au sud de Marthas Vineyard, Massachusetts, États-Unies, jusqu'à Cuba. Une femelle de la crevette à tête violette, Aristeus antillensis, a été capturée par un chalut à crevette près du sud-ouest du Banc Grand à 44°06.5′N 52°57.8′W à la profondeur de 652 m. La distribution de cette espèce a été signalée au large de l'Ile de Nantucket, Massachusetts, jusqu'à Guyane française.

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/content/journals/10.1163/156854001505497
2001-03-01
2015-04-27

Affiliations: 1: Department of Fisheries and Oceans, Gulf Region, Science Branch, P.O. Box 5030, Moncton, New Brunswick E1C 9B6, Canada; 2: Box 12, Site 6 RR 1, Paradise, Newfoundland A1L 1C1, Canada

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