Nassau Grouper Identification Guide

Key identification features

• Tan to pale brown body marked with five irregular dark brown vertical bars
• A prominent black saddle-shaped blotch at the base of the tail (caudal peduncle)
• A row of small black spots below and around the eyes
• Ability to rapidly shift between pale and dark color phases, including an all-dark "tuxedo" phase with a pale belly during spawning displays
• Moderate size, typically 1-2 feet (30-60 cm), occasionally larger
• Blunt head profile with a large mouth typical of groupers

Common look-alikes

• Red hind: shows small reddish-brown spots overall rather than broad vertical bars, and lacks the black tail-base saddle blotch.
• Graysby: much smaller with fine pale spots on a reddish body and no vertical barring.
• Coney: shows scattered blue-edged spots and lacks the distinctive dark saddle at the tail base.

Where you'll see one

Nassau grouper live on coral reefs and rocky bottoms throughout the Caribbean and western Atlantic, often near ledges and caves, and historically gathered in large seasonal spawning aggregations at specific reef sites.