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Several specimens of Arctic lyre crabs from a DFO trawl survey in the St. Lawrence. Originally shown has Hyas coarctatus, var alutaceus. Species is now Hyas alutaceus.
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Lesser Toad Crab -dorsal view. Appears to be of the form Hyas coarctatus alutaceus, now accepted as Hyas alutaceus. See: Pohle, G. W. 1990. A guide to decapod Crustacea from the Canadian Atlantic: Anomura and Brachyura. Can. Tech. Rep. Fish. Aquat. Sci. 1771 : iv + 30 p.
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Lesser Toad Crab -male. Appears to be of the form Hyas coarctatus alutaceus, now accepted as Hyas alutaceus. See: Pohle, G. W. 1990. A guide to decapod Crustacea from the Canadian Atlantic: Anomura and Brachyura. Can. Tech. Rep. Fish. Aquat. Sci. 1771 : iv + 30 p.