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Abstract

A new gobiid fish has been collected from Ryukyu Archipelagos of Japan. This species is described herein as a new species, Luciogobius ryukyuensis sp. nov. It is characterized by the following unique combination of features: (1) second dorsal fin rays: I/11 and anal fin rays I/11; (2) pectoral fin rays 16 and with one upper, very short free soft ray; (3) vertebral count 37; and (4) specific coloration: head and body with many rounded light creamy white spots above creamy yellow to yellowish brown background. A diagnostic key to all nominal species of Luciogobius from West Pacific are provided herein.

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