Scorpaenodes arenai Torchio 1962

This species was reported during diving in a subtidal tunnel (14 m deep) in the Azores where it was regularly observed as a 'resident species', exhibiting nocturnal feeding habits. It was also found in the dark zone of a sublittoral cave in the Mediterranean where the species was spotted in a typical dark cave community dominated by serpulid polychaetes and sponges (e.g. Agelas oroides, Dendroxea lenis, and Haliclona mucosa). Large swarms of the shrimp Plesionika narval were found throughout the cave while its fish assemblagealso included Anthias anthias, Apogon imberbis, Phycis phycis and Serranus cabrilla (Ref. 104757).

Observed and captured in rocky caves (J.M.N. Azevedo, pers. comm., 03/02).