Abstract
On 16 October 2025, a specimen of the long-jawed squirrelfish, Holocentrus adscensionis (Osbeck, 1765), was caught in the waters of Porto Montenegro, Tivat (Boka Kotorska, Montenegro). This finding represents the first record of this non-indigenous species in the inventory of Montenegrin marine fish fauna and the second record in the Adriatic Sea.
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