“Expositio in septem visiones Apocalypsis” is the title of the manuscript, ascribed to Berengaudus, and originating from the 14th century. It is kept in the Bibliothèque Nationale, Paris, but currently only a black/white version is available on the net. 
On folio 2r, in the lower right corner, a variation on the theme ‘knight v. snail’ is seen. Here the knight – who is hairy as an ape – has a lance in his right hand, ready to attack; in his left hand he holds a hart-shaped shield. The knight also has colours aside, showing an animal (but which?). The snail is stylised, with a dextral shell suggesting ribs, the two tentacles pointed forward against the knight.
 BNF, Ms. Latin 688, 48 ff. http://gallica.bnf.fr/ark:/12148/btv1b90765210.