Amioides polyacanthus is a species of fish in the family Apogonidae, the cardinalfishes. It is endemic to the marine waters around the Philippines where it is found down to a depth of . This species grows to a total length of . This species is the only known member of the genus Amioides.Mabuchi, K., Fraser, T.H., Song, H., Azuma, Y. & Nishida, M. (2014): Revision of the systematics of the cardinalfishes (Percomorpha: Apogonidae) based on molecular analyses and comparative reevaluation of morphological characters. Zootaxa, 3846 (2): 151–203.
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