This species is found Gulfwide, but is more common in the northern Gulf of Mexico. Smaller fish may be found shallower than 100 feet deep, but warsaw grouper, especially larger specimens, are most common deeper than 200 feet, commonly out to 700 feet. They are found in a wide variety of habitats, offshore oil and gas platforms, rock piles, coral, hard bottom encrusted with living organisms (live bottom), ledges, and drop offs. The warsaw grouper’s overall body color is a dark mottled brown. The second spine of the dorsal fin is noticeably longer than the others and the spiny part of the fin appears crest-like, resembling a rooster comb. A dead give-away to identification is that this is the only grouper in the Gulf of Mexico with 10 spines in the dorsal fin. Warsaw grouper are long-lived, to at least 25-30 years. They are not well researched, in spite of the glamour of their size and their wide distribution. Because of their large size and power, only the heaviest equipment with heavy line can be used. A strike can be interpreted as a hangup on the bottom. They will hug the bottom and often attempt to swim under obstructions. Dorsal spines (total): 10; Dorsal soft rays (total): 13-15; Anal spines: 3; Anal soft rays: 9. Distinguished by the following characteristics: dark reddish brown or brownish grey to almost black dorsally, dull reddish grey below; depth of body contained 2.4-2.6 times in SL; head length 2.1-2.5 times in SL; distinctly convex interorbital area; angular preopercle, rounded angle, with slightly enlarged serrae and with 1-2 small spines on lower edge just in front of angle; smooth interopercle and subopercle; subequal nostrils, posterior nostrils slightly larger; maxilla reaches well past eye; 4-5 rows of small teeth on midside part of lower jaw in adults and juveniles with 2-3 rows