Enneapterygius rubicauda, the redtail triplefin, is a species of triplefin blenny in the genus Enneapterygius.

[2] It was described by Shen Shih-Chieh in 1994.

[3] They occur in the western Pacific Ocean, including the Ryukyu and Ogasawara Islands, Taiwan, the Philippines, New Caledonia and Vanuatu.

[1]