Axoclinus is a genus of triplefins in the family Tripterygiidae. This genus has six described species. It is restricted to the eastern tropical Pacific.
Axoclinus cocoensis, known commonly as the Cocos triplefin, is a species of triplefin blenny. It is found only on shallow reefs around Cocos Island in the eastern Pacific Ocean, part of Costa Rica.
Axoclinus lucillae, known commonly as the Panama triplefin, is a species of triplefin blenny. They occur in the eastern Pacific in shallow rocky and coral areas as deep as 20 metres (66 ft) from Mexico to Colombia. The specific name honours Louise “Lulu” Miriam Parsons (1912–2013), the first wife of George Washington Vanderbilt III, although the eponym is more suggestive that the species is named after their daughter, Lucille Margaret Vanderbilt.
Axoclinus nigricaudus, known commonly as the Cortez triplefin, is a species of triplefin blenny. It occurs in the eastern Pacific in the western and north-eastern Gulf of California.
Axoclinus rubinoffi, known commonly as Rubinoff's triplefin, is a species of triplefin blenny. This species is endemic to Malpelo Island in the eastern Pacific off Colombia. The specific name of this fish honours the American marine biologist Ira Rubinoff, Director of the Smithsonian Tropical Research Institute.
Ceratobregma helenae, known commonly as the Helen's triplefin, is a species of triplefin blenny. It has an Indo-Pacific distribution from Christmas Island to Samoa, north to Taiwan and south to south eastern Australia. The species is named after Wouter Holleman's wife, Helen.
Enneanectes carminalis, known commonlfix small tagy as the carmine triplefin or the delicate triplefin in Mexico and the United Kingdom, is a species of triplefin blenny. It is a tropical blenny known from reefs from Mexico to Panama, in the eastern central Pacific Ocean. It was originally described by D.S. Jordan and C.H. Gilbert in 1882, as Tripterygium carminale. Blennies in this species can reach a maximum length of 3 centimetres, and feed primarily off of benthic algae and invertebrates.
Enneanectes reticulatus, known commonly as the network triplefin, is a species of triplefin blenny from the coastal waters of southern Baja California.
The yellow triplefin ,> also known as the Abel's triplefin in South Africa, is a species of triplefin in the genus Enneapterygius. Males in this species can reach a maximum length of 2.5 centimetres. The blennies are generally bright yellow in colour, and males have black heads. They feed mostly on benthic invertebrates.
The blackbelly triplefin is a species of triplefin blenny in the genus Enneapterygius, described by German ichthyologist Ronald Fricke in 1997 and known from the western Pacific Ocean.
The northern yellow-black triplefin, also known as the northern Australian yellow-black triplefin, is a species of triplefin blenny in the genus Enneapterygius. It was described by German Ichthyologist Ronald Fricke in 1994. It is a tropical blenny, endemic to northern Australia, in the western Pacific and southeastern Indian Oceans. It is a non-migratory species which dwells in shallow tidal pools on coralline rock and in seagrass, and has been recorded swimming at a depth range of 0–15 m (0–50 ft). Male northern yellow-black triplefins can reach a maximum length of 2.8 centimetres.
The halfblack triplefin, also known as the half-black triplefin, blackbelly triplefin, or the green-tail threefin, is a species of triplefin blenny in the genus Enneapterygius. It was originally described by R. Kner and F. Steindachner in 1867. It is a non-migratory tropical blenny known from coral reefs in the western Pacific Ocean, and has been described from the Ryukyu Islands to eastern Australia. It has been recorded swimming at a depth range of 0–30 metres.
Helcogramma decurrens, known commonly as the black-throated triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Allan Riverstone McCulloch and Edgar Ravenswood Waite in 1918. This species occurs along the western and southern coasts of Australia where it is found down to depths of 13 metres (43 ft) in both the intertidal and subtidal zones where it hides among algae growing on rocky substrates.
Helcogramma springeri, known commonly as the Springer's triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by P.E. Hadley Hansen in 1986. The specific name honours the ichthyologist Victor G. Springer of the National Museum of Natural History. This species is found in the western Pacific Ocean from Indonesia and the Philippines to northern Australia, including the Great Barrier Reef.
Lepidonectes bimaculatus, known commonly as the twinspot triplefin, is a species of triplefin blenny in the genus Lepidonectes. It was described by Gerald R. Allen and David Ross Robertson in 1992. This species is found in the eastern Pacific Ocean where it has been recorded only in the vicinity of Malpelo Island in Colombia. The twinspot triplefin acts as a cleaner fish, its only client species being the grouper Epinephelus labriformis.
Lepidonectes clarkhubbsi, known commonly as the signal triplefin, is a species of triplefin blenny in the genus Lepidonectes. It was described by William Albert Bussing in 1991 and he gave it a specific name which honours the American ichthyologist Clark Hubbs (1921–2008). This species occurs in the eastern Pacific Ocean where it is found off Costa Rica and Panama. The signal triplefin is found on rocky shores where it feeds on very small invertebrates and algae.
Lepidonectes corallicola, known commonly as the Galapagos triplefin blenny, is a species of triplefin blenny in the genus Lepidonectes. It was described by William Converse Kendall and Lewis Radcliffe in 1912. This species is endemic to the Galapagos Islands. It occurs on rocky slopes and harbour walls where the males hold territories in the breeding season, November to February. These territories are 50 centimetres (20 in) in diameter and the males court females who lay the eggs in his territory and then departs. The male continues to court additional females while guarding the previous female's egg mass from predators. They can be found down to 15 metres (49 ft).
Norfolkia brachylepis, known commonly as the tropical scaly-headed triplefin, is a species of triplefin blenny in the genus Norfolkia. It was described by Leonard Schultz in 1960. This is an Indo-Pacific species which is distributed from the Red Sea to Fiji, north to the Izu Islands and south to Australia.
Norfolkia thomasi, known commonly as the Thomas' triplefin, is a species of triplefin blenny in the genus Norfolkia. It was described by Gilbert Percy Whitley in 1964, naming it in honour of Leonard Rees Thomas who organised the Australian Museum's 1962 Swain Reefs Expedition. The hemispherical eggs of the Thomas' triplefin are covered in sticky threads that help anchor them in the algae on their nesting sites. This adaption helps insure the safety of the eggs. One the eggs hatch the larvae that emerge are planktonic and they stick to shallow waters near the shore. The matured Thomas' triplefin then ventures out into the coral reef and intertidal pools. This species is found in the western Pacific Ocean from the Ryukyu Islands to the Tuamoto Archipelago, in Australia it is distributed from the northern Great Barrier Reef south to Byron Bay, New South Wales.
Axoclinus storeyae is a species of triplefin blenny which is found in Mexican waters in the Gulf of California where it is associated with reefs, living among rocks and boulders with thick growths of algae in shallow water. The specific name honours the American herpetologist, ichthyologist and museum curator Margaret Hamilton Storey (1900-1960) who worked at the Stanford University Natural History Museum.
