First records of two triplefins, Enneapterygius rhothion and Enneapterygius olivaceus (Actinopterygii: Blenniiformes: Tripterygiidae), from Australia and Vanuatu

Presently reported single specimen of Enneapterygius rhothion Fricke, 1997, previously considered endemic to waters off New Caledonia and Vanuatu, represents the first record from Australia and the northernmost record of the species. In addition, Enneapterygius olivaceus Dewa, Tashiro, et Motomura, 2023, originally described from Japan and the Philippines, is also newly recorded from Australia and Vanuatu, being the first record of the species from the Southern Hemisphere.