Odontamblyopus

Abstract: The Indo-West Pacific gobiid genus Odontamblyopus Bleeker is defined and revised. Odontamblyopus is unique within the Amblyopinae in having free and silklike pectoral-fin rays. Odontamblyopus comprises four species: O. lacepedii, distributed from southern China to Taiwan, Korea, and Japan; O. roseus, distributed along the west coast of India; O. rubicundus, ranging from the east coast of India to Myanmar; and O. tenuis, known only from Pakistan and Myanmar. A key to species is provided. Figures and descriptions of each species are also given. Odontamblyopus has often been confused with Taenioides; the two genera are compared and characters to distinguish them are provided. The phylogeny and biogeography of Odontamblyopus are discussed.