Abstract

An adult of Acanthurus xanthopterus Valenciennes, 1835 was caught in the waters off Alexandria, Egypt, in August 2021, through spearfishing. This finding documents the first occurrence of the species in the Mediterranean basin. Description of the specimen, morphometric measurements and meristic characters are given. The yellowfin surgeonfish is widely distributed in the Indo-Pacific region, absent in the Red Sea and it is a popular aquarium fish. Potential routes of introduction of the species into the Mediterranean are briefly discussed.

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