Raja clavata. The Thornback.

Title: D. Marcus Elieser Bloch's, ausübenden Arztes zu Berlin ... Ökonomische Naturgeschichte der Fische Deutschlands : mit sieben und dreyssig Kupfertafeln nach Originalen
Year: 1783 (1780s)
Authors: Marcus Elieser Bloch, 1723-1799; Krüger, junior, ill; Ludwig Carl Schmidt, engraver; Johann Gottlieb Schmidt, engraver; F G Schmidt, engraver; G Bodenehr, engraver; C Darchow, engraver; F G Berger, engraver; Friedrich Wilhelm Schmidt, engraver; A F Schmidt, engraver; C F Gursch, engraver; Spencer Fullerton Baird, 1823-1887, former owner. DSI
Subjects: Ichthyology; Fishes; Fishes
Source book page: https://archive.org/stream/dmarcuselieserbl00bloc/#page/n172/mode/1up
Source: https://commons.wikimedia.org/wiki/File:D._Marcus_Elieser_Bloch%27s,_aus%C3%BCbenden_Arztes_zu_Berlin_%C3%96konomische_Naturgeschichte_der_Fische_Deutschlands_-_mit_sieben_und_dreyssig_Kupfertafeln_nach_Originalen_(1783)_(20956654296).jpg

The thornback ray or thornback skate (Raja clavata) is a species of fish in the Rajidae family. Raja clavata is found in coastal waters of Europe and the Atlantic coast of Africa, possibly as far south as Namibia and even South Africa.