The spectacled triplefin or longfinned triplefin, Ruanoho whero, is a triplefin, the only species in the genus Ruanoho. It is commonly found around New Zealand from depths of a few metres to about 30 m, most common in reef areas of broken rock. Its length is between 4 to 8 cm and its head is flattened with large eyes surrounded by a dark band giving rise to its common name. The head and fins have a...