Lutjanus semicinctus

Blackbanded Snapper | Blackbanded Seaperch | Half-banded Seaperch | Half-barred Snapper
Lutjanus semicinctus
Lutjanus semicinctus, Raja Ampat, Indonesia, Photo: Rick Stuart-Smith
Lutjanus semicinctus
Lutjanus semicinctus, Naigani Is, Fiji, Photo: Andrew Green
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Lutjanus semicinctus
Lutjanus semicinctus


Tropical Indo-Pacific


Olive/yellow back with seven black dagger-shaped bars, light belly, white ventral fin, and a yellow tailfin with large black spot at base. Lower, more elongate profile than most Lutjanus species (Snappers). Length to 35 cm.


Max Size: 35 cm

Sea Temperature Range: 26.6-31.7°C

Depth: 10-36m

Habitat Generalization Index: 2.39

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 (5.2% 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: Joe Shields