Very much elongated: between the rays of the dorsal, anal, and caudal fins, processes of imbricated scales.
"Length twenty-two inches; greatest depth, exclusive of the fins, two inches and a quarter: body plump and rounded: head elongated; lips membranous; teeth numerous, in several rows, those in front larger and more prominent, rather incurved: eyes moderately large: anterior gill-plate serrate; six gill-rays: body and gill-covers with large scales: lateral line nearer the back, descending with a sweep opposite the termination of the dorsal fin, thence backward straight: dorsal with twenty-one firm, and eight soft, rays; the fin connected with the latter expanded, reaching to the base of the tail: pectorals round, with fourteen rays: ventrals with six rays, the outermost simple, stout, firm, tipped; between these fins a large scale: anal with six firm, and eight soft, rays, the latter a soft portion expanded: caudal round, with fifteen rays: between each ray of the dorsal, anal, and caudal fins, a process formed of firm elongated imbricated scales.
D. 21/8; A. 6/8; C. 15; P. 14; V. 1/5.
Colour a uniform light brown, lighter on the belly; upper eye-lid black; at the edge of the base of the caudal fin a dark brown spot: pectorals yellow; all the other fins bordered with yellow." Couch.
A single individual of this species is recorded by Mr. Couch to have been taken off Cornwall, in February 1830, at the conclusion of a very cold season. It appears to be particularly characterized by having rows of scales between the rays of the dorsal and anal fins, as well as the caudal; this last fin exhibiting the above character in many other species of the present family. Its identity, however, with the L. Luscus of Linneeus appears very questionable. Cuvier thinks† that the 'Linnsean L. Luscus is only a variety of L. Turdus of Gmelin.