Sharks

The spurdog is the only common small shark found in the North Sea and eastern North Atlantic which has a spine in front of the two dorsal fins and lacks an anal fin.

The starry smoothhound is closely related to the smoothhound and resembles it closely. The lower lobe on the tail is larger than its relative and the denticles are broad with grooves along their length.

The smoothhound has a typical, slender shark body with two dorsal fins and five gill slits. The lower lobe of the tail fin is comparatively small.

The porbeagle shark is a round bodied, chunky member of the shark family. It has five gills and comparatively large front dorsal fin. The small second dorsal fin is situated immediately above the similar anal fin.

The blue shark is a long, slender member of the shark family with long, curving pectoral fins. The upper lobe of the tail fin is also long.

This small member of the shark family has a long, low tail fin the lower lobe of which is under developed. The two dorsal fins are situated towards the tail and the first of these starts behind the base of the pelvic fin.

A small bull huss can look at first glance like a lesser spotted dogfish and is also known as the greater spotted dogfish. However the nasal flaps in the huss are clearly separated.

The black-mouthed dogfish is a small member of the shark family and has the typical shark shape. It has two small, equally sized dorsal fins and a large upper lobe to the tail fin.