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Plate IX. 27. Raia radiata, Donovan. From a specimen collected off Provincetown, Mass. (About 4/7 natural size.) 28. Raia hyperborea, Collett. FromCollett, Fishes Norwegian North Atlantic Expedition. 29. Raia laevis, Mitchill. Specimen from FISH HAWK in Narragansett Bay, at 8 1/4 fathoms. 30. Raia granulata, Gill. From type specimen collected on Le Have Bank. 1/14 size.