Helcogramma is a genus in the triplefin family Tripterygiidae. The blennies in the genus Helcogramma are found throughout the Indo-Pacific and in the South Atlantic Ocean off the islands of St Helena and Ascension.
Helcogramma aquila, the darktail triplefin or blacktail triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Jeffrey T. Williams and Carolyn J. McCormick in 1990. This species occurs in the western Pacific Ocean in the Batanes Islands in the Philippines and it has also been found off Guam.
Helcogramma capidata, known commonly as the hooded triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Richard Rosenblatt in 1960. This species is widespread in the western Pacific Ocean from the Mariana Islands east to Samoa, Fiji and Tonga; it has been recorded from Sabah too.
Helcogramma cerasina is a species of triplefin blenny in the genus Helcogramma. It was described by Jeffrey T. Williams and Jeffrey C. Howe in 2003. This species is found in the western Pacific Ocean where it has been recorded from Tonga and Vatoa in southern Fiji.
Helcogramma chica, known commonly as the little hooded triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Richard Rosenblatt in 1960. This species is found in the Indo-Pacific from the Cocos (Keeling) Islands to the Society Islands in French Polynesia.
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 desa, the neglected triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Jeffery T. Williams and Jeffrey C. Howe in 2003. This species is known from the western Pacific in Vietnam and the Philippines, including the Spratly Islands.
Helcogramma ememes is a species of triplefin blenny in the genus Helcogramma. It was described by Wouter Holleman in 2007 who used the initials of his mentor Margaret Mary Smith (1916-1987) of the J.L.B. Smith Institute of Ichthyology to create this species specific name. Smith and her husband, J.L.B. Smith, had collected many specimens of this blenny in the 1960s. This species is found in the western Indian Ocean along the coats of East Africa from the Bazaruto Islands in Mozambique to Malindi in Kenya, it is also found in the Comoro Islands, Mauritius and the Seychelles.
Helcogramma hudsoni, known commonly as the Hudson's triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by David Starr Jordan and Alvin Seale in 1906, the specific name honouring the illustrator of their monograph on Samoan fishes, R.L. Hudson. This species is found in the western Pacific Ocean where it has been recorded from the Izu Islands, Ryukyu Islands, Savo Island, New Caledonia, Vanuatu, Fiji, and Samoa.
The triangle triplefin is a species of triplefin blenny in the genus Helcogramma. It was described by Henry Weed Fowler in 1946. This species occurs in the western Pacific Ocean in the Ryukyu Islands, Taiwan and islands in Batangas province in the Philippines.
Helcogramma kranos, known commonly as the helmet triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Fricke in 1997. This species is endemic to the islands of Komodo, Lombok, Nusa Tenggara Barat and Timor in Indonesia.
Helcogramma lacuna, the cavern triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Jeffrey T. Williams and Jeffery C. Howe in 2003. This species has only been recorded in the Similan Islands in the Andaman Sea, part of Thailand.
Helcogramma larvata is a species of triplefin blenny in the genus Helcogramma. It was described by Ronald Fricke and John E. Randall in 1992. This species has only been recorded from North Male Atoll in the Maldives where the only known specimens were found in a shallow lagoon with a maximum depth of 5 metres (16 ft) and a sandy bottom.
Helcogramma microstigma is a species of triplefin blenny in the genus Helcogramma. It was described by Wouter Holleman in 2006. This species occurs in the western Indian Ocean off Mozambique, Comoro Islands and Madagascar.
Helcogramma nesion is a species of triplefin blenny in the genus Helcogramma. It was described by Jeffrey T. Williams and Jeffrey C. Howe in 2003. This species is found in the western Pacific Ocean where it is endemic to Japan, it is restricted to the Izu Islands, Ogasawara Islands and to the island of Okino-shima which is at the south-western tip of Shikoku.
Helcogramma nigra, the Rotuma triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Jeffrey T. Williams and Jeffrey C. Howe in 2003. This species occurs in the western central Pacific Ocean where it has been recorded from Papua New Guinea, the Solomon Islands, Vanuatu and Rotuma.
Helcogramma novaecaledoniae, known commonly as the New Caledonian triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Ronald Fricke in 1994. This species is found in the western Pacific Ocean where it has been recorded from New Caledonia, the Loyalty Islands and Guadalcanal.
Helcogramma randalli, Randall's triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Jeffrey T. Williams and Jeffrey C. Howe in 2003 and named it in honour of the ichthyologist John Ernest Randall of the Bishop Museum in Honolulu who collected all of the known specimens. This species occurs in the western Pacific Ocean and is endemic to the islands of central Indonesia such as Bali, Lombok, Timor and Komodo.
Helcogramma rhinoceros, known commonly as the rhinocerus triplefin or the rhino threefin, is a species of triplefin blenny in the genus Helcogramma. It was described by P.E. Hadley Hansen in 1986. This species is found throughout the Indo-Pacific from Thailand to Fiji and Tonga.
Helcogramma shinglensis is a species of triplefin from the genus Helcogramma. It has been recorded only from the Gulf of Mannar in the eastern Indian Ocean. It is accepted as a valid species by Fishbase but the Catalog of Fishes treats this taxon as synonymous with Helcogramma obtusirostris.
