Two-spot Goby Identification Guide

Key identification features

• Small goby around 7 cm, pale gray to white body with faint mottling and a subtly barred pattern
• Two large black eyespots set side by side on the first dorsal fin, resembling a pair of eyes staring back at predators
• Enlarged, fan-like pectoral fins spread wide and used to "walk" and glide across sand rather than swim in open water
• Often seen moving in bonded pairs over open sand near burrows, staying close together
• Slender body tapering to a narrow caudal peduncle, with a small pointed head

Common look-alikes

• Watchman gobies (Cryptocentrus): lack the paired dorsal eyespots and fan-shaped pectorals, and typically pair with a burrowing shrimp
• Other sand-dwelling gobies: typically show a single dark spot or none at all, not a matched pair on the dorsal fin
• Dartfish: have a more slender, torpedo-shaped body without the eyespot pattern or fan pectorals

Where you'll see one

Two-spot Gobies favor sandy or silty lagoon and reef-flat habitats across the Indo-Pacific, often hovering near shared burrows in male-female pairs and gliding a short distance before settling back onto the sand.