Ventral-Barred Shrimpgoby

Cryptocentrus sericus

The Ventral-barred Shrimpgoby is a small reef fish belonging to the family Gobiidae. It can reach a maximum length of 10 cm and is known for its variable coloration, which ranges from yellow to dark brown. Distinctive markings include a pair of large dark-brown streaks above the rear corner of the mouth and another pair on the gill cover. Blue streaks are present on the pelvic, anal, and caudal fins, adding to its unique appearance. The species exhibits diffuse bars on its sides and a short bar across the upper pectoral-fin base. This goby inhabits sandy-silt bottoms and is often associated with alpheid shrimps, with which it shares a symbiotic relationship. Its distribution spans the tropical waters of the East Indian Ocean to the Western Pacific, including regions such as the Andaman Sea, Papua New Guinea, and Palau. Divers can encounter this species at shallow depths ranging from 1 to 10 meters. The Ventral-barred Shrimpgoby is listed as Least Concern on the IUCN Red List. During dives, observers might notice its behavior of hovering near the sandy bottom, often close to its shrimp partner.