The lighthouse lizardfish is known to live in a marine environment within a depth range of about 2–100 meters.

The average length of the Synodus jaculum as an unsexed male is about 10 centimeters or 3.9 inches.

The maximum recorded length of the Synodus jaculum as an unsexed male is about 20 centimeters or 7.87 inches.

[1] The lighthouse lizardfish is native to the areas of Indo-Pacific, East Africa, Marquesan, Society islands, north to the Izu Islands in Japan, south to New South Wales in Australia, Palau, and Kosrae in Micronesia.

This species of fish is caught and sold as fresh and salted in markets.