Sailfin Snapper Identification Guide

Key identification features

• Deep, laterally compressed body with a steep, blunt head profile
• Bright golden-yellow to olive body crossed by several vivid blue horizontal stripes, most prominent on the head
• Very tall, sail-like dorsal fin, often with elongated, filamentous tips extending well past the fin's rear edge
• Similarly elongated filaments on the anal and pelvic fins
• Blue-edged fins contrasting sharply against the yellow body
• Large, expressive eye; adults commonly reach 40-50 cm

Common look-alikes

• Longspine Snapper: also has a modified dorsal fin, but only a single elongated spine rather than a full sail-shaped fin, and lacks the bold blue stripes
• Emperor snapper (Lutjanus sebae): shares a bold striped juvenile pattern but has diagonal dark bars rather than horizontal blue lines and a normal-height dorsal fin
• Blue-lined sea bream species: can show similar blue striping but lack the Sailfin's dramatically tall, filamentous dorsal fin

Where you'll see one

Occurs over sandy and rubble bottoms adjacent to coral reefs and lagoons across the Indo-West Pacific, usually solitary or in small groups, from shallow water down to about 40 meters.