hope this will help a little. just a small list of coarse fish commonly found in the pacific northwest and the family they belong to.
Codfishes include:
pacific cod, pacific tomcod, walleye pollock, pacific hake.
Scorpionfishes or commonly known as 'rockcod' include:
copper rockfish,quillback rockfish, brown rockfish, china rockfish, yellowtail rockfish, black rockfish, blue rockfish, dusky rockfish, bocaccio, silver rockfish, widow rockfish, canary rockfish, vermilion rockfish, tiger rockfish, yelloweye rockfish, splitnose rockfish, puget sound rockfish, redstripe rockfish, greenstripe rockfish, shortspine thornyhead.
The Greenlings include:
kelp greenling, whitespotted greenling, rock greenling, lingcod, painted greenling.
The Sculpins include:
37 different species commonly known as 'bullheads' (the great sculpin and pacific staghorn being the two most caught). on this list includes the cabezon, red irish lord, and brown irish lord (very edible and tasty fish).