Common Carp (Cyprinus carpio)
Carp have scaleless heads and fully scaled bodies. Dorsal fin long based, free edge concave, a stout spine (with serrated rear edges as first ray) Mouth toothless but with 2 barbels at each side, second one longer. The current UK record is 64lb 14oz (all carp).
Chub (Leuciscus cephalus)
Chub have a large head, a large mouth with almost rubberlike lips, a black/silver to greenish back, silvery sides, white belly, and fins tinged with yellowish red. Size and length varies depending on water. The British record was broken in May 2007 when Steve White caught a 9lb 3oz Chub.
The Barbel (Barbus barbus)
Barbel have elongated bodies, almost round in cross section but flat bellied. Head pointed and scale less, eyes rather small, set high on the sides of the head, lips thick with two pairs of fleshy barbels. The current UK barbel record is 19lb 6oz.