Adept at color change. Most common phase is brown to reddish brown; can be blue-gray, bright yellow or many shades between. Have pale lines, scattered small black spots, and a black streak on upper jaw.
Head and forebody vary from bright yellow to yellowish or greenish tan; dark blue to green rear body and tail. Dark midbody bar continues as a wide border along back to tail.
Greenish overall, underside lighter; anal fin usually reddish. Outer tips of tail black. Tail square-cut.
Emerald green. Salmon to yellow markings on head and fins. Tail is crescent-shaped.
Upper body has whitish undercolor; lower body pale yellow. Series of dark dots form diffuse horizontal lines on body. Head more pointed than that of other family members.
Vary from brownish gray to olive-brown. Usually a white or pale yellow spot located just below last dorsal fin ray; may have black borders on tail, primarily in southern Caribbean. Slender, deeply forked tail.
Upper body usually yellow, occasionally with shades of green to blue, and white to bluish silver or light gray below. Male becomes dark blue to purple during mating season when guarding reddish purple egg patches.