This paper identifies and examines six peculiarly insular-British features of the imago leonis. These are the absence of the evangelist, a red or gold colour, the frequent absence of wings, an orientation to sinister, a langued tongue and a “stretched” attitude. Each feature’s comparative frequency is graphically represented and the end of the paper discusses possible sources for the British conception of the lion. From a short comparative survey it is found that these features are typical only of insular British evangelist-symbol lions, and not lions in contemporary British artwork more generally or of non-insular British gospel lions. The style of the British imago leonis probably developed in isolation and from a classical model.