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An unmistakable guitarfish with a broad, rounded snout, large, high pectoral
fins, and heavy ridges of spiky thorns over the eyes and on the back and
shoulders; jaws with heavily ridged, crushing teeth in undulating rows.
Grey or brownish above, white below; numerous white spots dorsally on
fins, body and tail; black spots on head and shoulders but no eyespots or
ocelli. Attains 3 m.