Family 56.—MACROURIDÆ. (3 Genera, 21 Species.)
"Marine fishes, with the body terminating in a long, compressed tapering tail, and covered with spiny, keeled or striated scales."
Distribution.—North Atlantic from Greenland to Madeira and the Canary Islands, Mediterranean, Japanese and Australian seas.
None of these fishes have occurred in the British seas.
Family 57.—ATELEOPODIDÆ. (1 Genus, 1 Species.)
"Marine fishes, with the naked body terminating in a long compressed, tapering tail."
Distribution.—Japan.
Family 58.—PLEURONECTIDÆ. (34 Genera, 185 Species.)
"Marine carnivorous fishes, with strongly compressed flat bodies, one side of which is colourless, and eyes unsymmetrically placed, both on the coloured side. They inhabit the sandy bottoms of shallow seas, and often ascend rivers."
Distribution.—Universal, on Arctic, Temperate, and Tropical coasts.