Description: English: Raja clavata (Thornback ray or thornback skate), Ecomare, Texel, the Netherlands Nederlands: Raja clavata (Stekelrog), Ecomare, Texel, Nederland. Date: 30 March 2014, 15:22:26. Source: Own work. Author: Bj.schoenmakers. Camera location 53° 04′ 39.54″ N, 4° 44′ 42.84″ E: View all coordinates using: OpenStreetMap - Google Earth: 53.077649; 4.745234.