Rivulated Mutton Hamlet

Alphestes multiguttatus

Rivulated Mutton Hamlet is a cryptically colored reef fish found in the Eastern Pacific, ranging from the Gulf of California to Peru. Typically reaching a maximum length of 30 cm, this species is characterized by its fusiform body, rounded caudal fin, and smooth scales. It features a dorsal fin with 11 spines and 18-20 rays, and an anal fin with 3 spines and 9 rays. The Rivulated Mutton Hamlet is known for its effective camouflage, often hiding in crevices or among seaweed during the day. This species inhabits rocky reefs and shallow waters, generally at depths up to 30 meters. It is a nocturnal predator, feeding mainly on benthic crustaceans. During the day, it remains sedentary, relying on its camouflage to avoid detection by predators. The Rivulated Mutton Hamlet is assessed as Least Concern on the IUCN Red List. Divers may encounter this fish resting quietly in crevices or partially covered with sand, blending seamlessly with its surroundings.