Pomacentrus is a genus of marine damselfish in the family Pomacentridae. These fish inhabit tropical locations and are often captured or bred as aquarium fish.
Apomatoceros is a genus of catfish of the family Trichomycteridae, its sole representative species being Apomatoceros alleni. This fish grows to about 14.6 centimetres SL and originates from the Amazon River. The specific name honours the collector of the type, zoologist William Ray Allen (1885-1955) of Indiana University.
Chrysiptera talboti, known commonly as Talbot's damselfish and Talbot's demoiselle, is a species of damselfish. It is a marine fish from the eastern Indian Ocean and western Pacific.
Chrysiptera hemicyanea, known commonly as the azure damselfish, azure demoiselle, half-blue demoiselle, and yellow-dipped damsel, is a species of damselfish.
Pomacentrus smithi, Smith's damselfish, is a species of damselfish from the family Pomacentridae which is found in the Western Central Pacific. It occasionally makes its way into the aquarium trade. It grows to a size of 7 cm in length. The specific name honours the American ichthyologist Hugh McCormick Smith (1865-1941).
Chrysiptera starcki, commonly known as Starck's demoiselle, is a species of damselfish in the family Pomacentridae. It is native to the western Pacific Ocean, where it has been reported from the Ryukyu Islands and Taiwan to Australia, New Caledonia, and Tonga. It was originally described in 1973 as Abudefduf starcki.
Pomacentrus pavo, sapphire damsel, peacock damsel or blue damsel, is a damselfish from the Indo-Pacific. It occasionally makes its way into the aquarium trade. It grows to a size of 8.5 cm (3.3 in) in length.
Manonichthys alleni, the Sabah dottyback is a species of ray-finned fish from the family Pseudochromidae, the dottybacks. It occasionally makes its way into the aquarium trade. It grows to a size of 12 centimetres (4.7 in) in length. This dottyback has only been known from Indonesia and Malaysia, but was recently recorded in Davao Gulf in the southern Philippines. The specific name honours the ichthyologist Gerald R. Allen of the Western Australian Museum in Perth who collected the type specimen and provided photographs of this species which Gill used in his description, as well as being in recognition of Allen's contribution to the knowledge of Indo-Pacific fish and of the support Allen gave Gill in is work on the Pseudochromidae.
Pavoraja alleni, or Allen's skate, is a species of fish in the family Arhynchobatidae. It is bathydemersal and lives on soft bottoms of the continental shelf in depths from 304 to 458 metres. It is native to Australia. Its maximum length is 35 centimetres (14 in). It lays egg capsules which have horn-like protections in each corner. As typical of rays, it does not guard its eggs.
Cirripectes alleni, the Kimberley blenny, is a species of combtooth blenny found in coral reefs in the eastern Indian Ocean, around Australia. This species reaches a length of 6.5 centimetres (2.6 in) TL. The specific name honours the ichthyologist Gerald R. Allen.
Ecsenius alleni, known commonly as the Allen's blenny, is a species of combtooth blenny in the genus Ecsenius. It is found in coral reefs in the eastern Indian ocean, specifically in western Australia. It can reach a maximum length of 3.4 centimetres. The blennies feed primarily off of plants and algae. The specific name honours the ichthyologist Gerald R. Allen.
Tanyemblemaria alleni, the slender blenny, is a species of chaenopsid blenny found around Panama, known from one species collected at Isla del Rey. It can reach a length of 5.4 centimetres (2.1 in) TL. The specific name honours the collector of the type, Gerald R. Allen of the Western Australia Museum in Perth.
Gerald Robert "Gerry" Allen is an American-born Australian ichthyologist. His career began in 1963, when he spent a semester at the University of Hawaii, where he also received a PhD in marine zoology in 1971. In 1972, Allen wrote his doctoral thesis on the systematics and biology of the anemone fish.
Ophichthus alleni is an eel in the family Ophichthidae. It was described by John E. McCosker in 2010. It is a marine, deep water-dwelling eel known from Australia, in the western Pacific Ocean. It dwells at a depth range of 115 to 200 m. Females can reach a maximum total length of 76 cm (30 in).
Neoglyphidodon carlsoni is a species of damselfish in the family Pomacentridae. It is found in the western and central Pacific Ocean. Adults can grow up to a maximum length of 10 centimetres (3.9 in) This fish is omnivourous. Occasionally, they are found in the aquarium trade.
The Cape damsel is a species of ray-finned fish in the damselfish and clownfish family, Pomacentridae, It is found in the eastern Atlantic Ocean where it is endemic to Cape Verde occurring among rocky inshore areas.
Tomiyamichthys alleni, Allen's shrimpgoby, is a species of ray-finned fish from the family Gobiidae. It occurs in the western Pacific Ocean where it is commensal with an aplheid shrimp.
Microspathodon bairdii, the bumphead damselfish, is a species of ray-finned fish from the family Pomacentridae. It is found in the eastern Pacific Ocean.
Creedia alleni is a species of sandburrowers found in the Eastern Indian Ocean in Australia. This species reaches a length of 4 cm (1.6 in).
Plectranthias alleni, Allen's perchlet, is a species of fish in the family Serranidae occurring in the Eastern Indian Ocean.
