Bulbous dreamer (Dermatias platynogaster). X-ray of a section through a female bulbous dreamer, a type of deep-sea anglerfish, showing its 'fishing pole' (upper left) protruding from its head (left). Female anglerfish have a natural 'fishing pole' - the long first spine of the dorsal fin is tipped with a bulb that holds luminescent bacteria to attract prey. This anglerfish has a soft fleshy body and, like many other deep-sea fish, spends its entire life in the water column, never touching bottom. This specimen measures 15 centimetres in length.