European conger
Conger conger
Sighting evidence at Grotta delle Rondinelle, Tremiti Islands

Photo: Kevin Bryant · CC BY-NC-SA
Large conger eels, sometimes exceeding 2 metres, inhabit the deepest recesses of the cave system. They are nocturnal hunters that emerge at dusk to prey on fish, octopus, and crustaceans across the cave floor and surrounding reef. Divers who linger at the cave entrance at the end of the dive commonly spot one or more congers beginning their evening movement while daylight is still fading.
Evidence at this site
No confirmed records on file at this site
European conger is listed as a curated species here based on historical reports.