Risso's smooth-head (Alepocephalus rostratus) is a ray-finned fish of the family Alepocephalidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 50 cm. It occurs at depths between 300 and 2250 metres. With a trophic level of 3.7, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.
Dorsal spines (total): 16 - 20; Anal spines: 17 - 20. : elongated.
Behavioural data for Risso's smooth-head is currently being reviewed.
Marine; bathydemersal; depth range 300 - 2250 m . Deep-water; 64°N - 17°S, 22°W - 22°E northeast Atlantic and western Mediterranean to Cape Verde (Ref.
pelagic crustaceans like euphausiids, decapods and mysids (Ref
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