Butterfly blenny

The butterfly blenny, Blennius ocellaris, is a small marine blenniid fish of Northern and Western Europe, as well as the Mediterranean and Black Seas and Morocco.It can grow as large as 20 centimetres (7.9 in) in length. It is usually found at a depth of 10–400 metres (33–1,312 ft) down, especially in areas with a rocky floor.

Butterfly blenny

The butterfly blenny, Blennius ocellaris, is a small marine blenniid fish of Northern and Western Europe, as well as the Mediterranean and Black Seas and Morocco.It can grow as large as 20 centimetres (7.9 in) in length. It is usually found at a depth of 10–400 metres (33–1,312 ft) down, especially in areas with a rocky floor.