POLLACK (Gadus pollachius)  , a fish of the family Gadidae, abundant on rocky coasts of northern Europe, and extending as far south as the western parts of the Mediterranean, where, however, it is much scarcer and does not attain to the same size as in its real northern home . In Scotland and some parts of Ireland it is called lythe . It is distinguished from other species of the genus Gadus by its long pointed snout, which is twice as long as the eye, with projecting lower jaw, and without a barbel at the chin . The vent is below the anterior half of the first dorsal fin . A black spot above the base of the pectoral fin is another distinguishing mark . Although pollack are well-flavoured fish, and smaller individuals (from 12 to 16 in.) excellent eating, they do not form any considerable article of trade, and are not preserved, the majority being consumed by the captors . Specimens of 12 lb are common, but the species is said to attain occasionally as much as 24 lb in weight .