761 Boylston St., 617-267-4000. Pick your favorite from the day?s catch, prepared your way?broiled, steamed, charcoal-grilled, fried, or saut?ed in cajun spices. Start with traditional New England chowder and fresh raw bar offerings. Take-out available. Sun?Thu 11:30 a.m.?11p.m., Fri & Sat ?til 12 p.m. L, D, LS, C.