Merluccius productus - Pacific Hake
Pacific hake grows to a length of 3 feet (about 90 cm). The coloration is metallic silver-gray with black speckling and pure silver on the belly. It is found in open sea at any depth up to 500 fathoms (900 m), from Sea of Cortez to the Gulf of Alaska. It feeds on shrimp, plankton and smaller fishes. It spawns in January through June. There is a commercial fishery for Pacific hake. The Russians eat large numbers of them, and in the United States they're used for animal food.
Urophycis chuss - Red Hake
Red hake grows to 30 inches (75 cm) and 7 lbs (3.2 kg). Their coloration is red to olive-brown, or even black above, the sides are tinted yellow, and the belly is white. In this genus, the pelvic fins are long and filamentous, containing tactile and taste senses that they use to search for food in the mud and silt that they are found over, in depths of 6 to 60 fathoms (10 to 110 meters). Their range is from Cape Hatteras to Nova Scotia. They are caught commercially, but not considered a prized food fish due to having quite soft flesh.
Urophycis tenuis - White Hake
White hake grows to 4 feet (120 cm). The coloration is purplish brown on the back, fading to a dirty white beneath. Habits, range and commercial value are the same as in the red hake.
An old European source mentions a hake that was transplanted from the coast of Ireland to Cape Cod. It is uncertain which species this is, but the reference is given below: