Threefin blenny to rock crevices at any perceived threat. Threefin blennies are diurnal and territorial; many species exhibit sexual dichromatism, with the females drab compared to the males. The second dorsal fin is also extended in the males of some species. Small invertebrates comprise the bulk of the threefin blenny diet. FishBase lists about 150 species in 30 genera: Threefin blenny Threefin or triplefin blennies are blennioids, small perciform marine fish of the family Tripterygiidae. Found in tropical and temperate waters of the Atlantic, Pacific and Indian Oceans, the family contains about 150 species in 30 genera. The family name derives from
Leaping blenny Leaping blenny The leaping blenny ("Alticus saliens"), also known as the jumping blenny, is a species of combtooth blenny (family Blenniidae) in the genus "Alticus". There is some uncertainty as to whether it was first described by J.R. Forster in 1788 or B.G.E. Lacepède in 1800, although Fishbase currently accredits it to Forster. It was originally described as a member of the genus "Blennius". It is a tropical blenny known from the Pacific and Indian oceans, including the Red Sea, the Society Islands, the Ryukyu and Bonin Islands, Queensland, Australia; and the Mariana Islands. Leaping blennies have been recorded at