Quod mella fragrant, hoc tuo corpore spiras." But the chief glory of the grayling is the large iridescent fin on his back. You see it cutting the water as he swims near the surface; and when you have him on the bank it arches over him like a rainbow. His mouth is under his chin, and he takes the fly gently, by suction. He is, in fact, and to speak plainly, something of a sucker; but then he is a sucker idealised and refined, the flower of the family.
Charles Cotton, the ingenious young friend of Walton, was all wrong in calling the grayling "one of the deadest-hearted fishes in the world." He fights and leaps and whirls, and brings his big fin to bear across the force of the current with a variety of tactics that would put his more aristocratic fellow-citizen, the trout, to the blush. Twelve of these pretty fellows, with a brace of good trout for the top, filled my big creel to the brim. And yet, such is the inborn hypocrisy of the human heart that I always pretended to myself to be disappointed because there were not more trout, and made light of the grayling as a thing of naught.