Lethrinus erythracanthus

Orangespotted Emperor | Orange-finned Emperor | Orangefin Emperor | Yellow-spotted Emperor
Lethrinus erythracanthus
Lethrinus erythracanthus, Raja Ampat, Indonesia, Photo: Rick Stuart-Smith
Lethrinus erythracanthus
Lethrinus erythracanthus, juvenile
Lethrinus erythracanthus
Lethrinus erythracanthus, Maldives, Photo: Rick Stuart-Smith
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Lethrinus erythracanthus
Lethrinus erythracanthus
Lethrinus erythracanthus


Tropical Indo-Pacific


Large head with rounded upper profile, dark body with variable diffuse pale areas, sometimes with spots arranged in rows, contrasts with blue-grey head, and yellow or red rear fins. Juveniles with brown body broken by thin white stripes along side, pointed snout.


Max Size: 70 cm

Sea Temperature Range: 24.2-31.6°C

Depth: 15-120m

Habitat Generalization Index: 3.87

Also referred to as the SGI (Species Generalisation Index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here.

Conservation and Rarity

IUCN Status: Not Evaluated

Occurrence: Infrequent (3.1% of sites)

Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed

Abundance: Solitary (1 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.

Edit by: RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland