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.
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.
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 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.
The blackfin triplefin is a species of triplefin blenny in the genus Helcogramma. It was described by Wouter Holleman in 1982. This species occurs between 0 and 50 metres in the western Indian Ocean along the eastern coast of Africa from KwaZulu Natal to northern Kenya and east to the Maldives, living on rock surfaces and beneath ledges.
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 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 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 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 serendip is a species of triplefin blenny in the genus Helcogramma. It was described by Wouter Holleman in 2007. This species is found only around the coasts of Sri Lanka and its specific name references the old Arabic name for Sri Lanka.
Helcogramma solorensis, known commonly as the Solor triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Fricke in 1997. It is endemic to Solor in East Nusa Tenggara, Indonesia.
Helcogramma trigloides, the scarf triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by Pieter Bleeker in 1858 as Tripterygion trigloides. This is a widespread species in the western Pacific Ocean.
Helcogramma vulcana, the volcano triplefin, is a species of triplefin blenny in the genus Helcogramma. It was described by John E. Randall and Eugenie Clark in 1993. This species is found in the western Pacific Ocean where it has been recorded from Bali to Gunung Api and Manuk in the Banda Sea.
Helcogramma ascensionis, the Ascension triplefin, is a species of triplefin blenny in the genus Helcogramma. it was described by Roger Lubbock in 1980. It has been recorded at depths of 0 to 5 metres in tidal pools and rocky reefs around the islands of Saint Helena and Ascension in the south eastern Atlantic Ocean.
