anguis fragilis slow-worms are lizards, though they are often mistaken for snakes. unlike snakes they have eyelids, a flat forked

adults angling anguilla anguis animal aquatic background cases catadromous catch close closeup drop eel eels escape european exceptional eye eyelids fin fisheries fisherman fishing fishy flat forked fragilis fresh freshwater glass grey head hobby important lake leisure length life lizard lizards long macro mistaken mouth natural nature normally nostril often outdoor predator rarely reach release reptile river rod scales sea silver skin slimy slow snake snakes sources species sport tail tentacle though tongue underwater unlike water wet wild wildlife worms