Redmarbled Lizardfish

Synodus rubromarmoratus

The Redmarbled Lizardfish is a reef-associated species found primarily in the tropical waters of the Indo-West Pacific, including regions such as Australia. Divers are likely to encounter this species in shallow waters, as 93% of recorded sightings occur at depths shallower than 40 meters. This fish is characterized by its elongated, oval-shaped body and distinctive greyish diamond-shaped markings when preserved. It has 53-55 lateral-line scales and a notable dental structure with 14-25 teeth on the tongue and 11-12 peritoneal spots. These lizardfish are harmless to humans and are generally solitary or found in small groups. The Redmarbled Lizardfish is currently listed as Least Concern on the IUCN Red List. Divers encountering the Redmarbled Lizardfish may find it resting on the sandy or rubble substrates of coral reefs. Its behavior is typically bottom-dwelling and ambush-predatory, lying in wait for unsuspecting prey. Observing this species can add interest to a dive, particularly in the reef environments where it resides.