Plectropomus areolatus (Rüppell, 1830)
Squaretail coralgrouper, 80cm

Plectropomus areolatus is common at Kwajalein on most lagoon and seaward reefs. It is sometimes difficult to distinguish them by sight from small Plectropomus laevis, but P. areolatus has a distinctly straight or slightly convex posterior edge to the tail fin, which also bears a narrow white posterior margin. This is usually a shy species and is difficult to approach. Sometimes they can be seen at a distance gathering in large numbers for breeding. They can show a variety of colors, but are always spotted with blue that is usually ringed in black.

This one was asleep on the reef at night.

Are you seeing double?

Created 5 April 2017
Updated 5 March 2023

Return to groupers

Kwajalein Underwater Home