Emperors

Thumbprint emperor (Lethrinus harak)

The Thumbprint emperor (Lethrinus harak) belongs to the family Lethrinidae (emperors) and is found in the Red Sea, with a wider Indo-Pacific range. It is a carnivore and usually seen in schools. It reaches about 30 cm and is found at 1–50 m depth. IUCN conservation status: Least Concern. It is not dangerous to divers.

Thumbprint emperor (Lethrinus harak), a Red Sea fish of the emperors family
Photo: iNaturalist / Wikimedia Commons

Quick facts

Scientific nameLethrinus harak
FamilyEmperors (Lethrinidae)
Common name (IT)Dentice arak
Common name (EN)Thumbprint emperor
Maximum size30 cm
Depth1–50 m
DistributionRed Sea and Indo-Pacific
IUCN statusLC — Least Concern

Description

Present throughout the Red Sea, with a broader range across the tropical Indo-Pacific.

Where it lives

Present throughout the Red Sea, with a broader range across the tropical Indo-Pacific.

  • Red Sea
  • Indo-Pacific

Frequently asked questions

What family does the Thumbprint emperor belong to?
The Thumbprint emperor (Lethrinus harak) belongs to the family Lethrinidae (emperors).
Is the Thumbprint emperor dangerous?
It is not dangerous to divers. As with any reef animal, do not touch or handle it.
Is the Thumbprint emperor endemic to the Red Sea?
No — it occurs in the Red Sea but its range extends across the Indo-Pacific.
How big does the Thumbprint emperor get?
It reaches a maximum length of about 30 cm.

Explore the Thumbprint emperor in 3D in the interactive atlas →