Graylingfish

Grayling (fish), any fish of the genus Thymallus, with five species from the northern rivers of both hemispheres, chiefly distinguished from Coregonus (q.v.) by their long many-rayed dorsal, violet in colour with eliu'k spots, T. vttlyavis, the European grayling, is British; large specimens attain a length of ten inches. The general colour is silvery grey, with dark stripes from head to tail. T. tig niter is known in Canada aspoissou bleu (= blue-fish).