of the Royal Cornwall Polytechnic Society, and also separately. He had before this given much assistance to Bewick in his British Quadrupeds, as well as in relation to his projected Natural History of British Fishes, and Yarrell was still more indebted to him in his British Fishes, to all three editions of which (1836, 1841, and 1859) Couch was a copious contributor.

His , (part i. 1838, part ii. 1841), completed by his son Richard Quiller Couch