The cutlassfishes are about 45 species of predatory fish in the family Trichiuridae of the order Scombriformes found in seas throughout the world. Fish of this family are long, slender, and generally steely blue or silver in colour, giving rise to their name. They have reduced or absent pelvic and caudal fins, giving them an eel-like appearance, and large fang-like teeth.
Crenicichla is a genus of cichlids native to South America commonly known as the pike cichlids. They are found in most tropical and subtropical freshwater habitats between the Andes and the Atlantic.
Geophagus is a genus of cichlids that mainly live in South America as far south as Argentina and Uruguay, but a single species, G. crassilabris is from Panama. They are found in a wide range of freshwater habitats. They are part of a group popularly known as eartheaters and mostly feed by picking up mouthfuls of sediment to sift out food items such as invertebrates, plant material and detritus. The largest species reach up to 28 cm (11 in) in standard length. They are mostly kept in aquariums.
Danio is a genus of small freshwater fish in the family Cyprinidae found in South and Southeast Asia, commonly kept in aquaria. They are generally characterised by a pattern of horizontal stripes, rows of spots or vertical bars. Some species have two pairs of long barbels. Species of this genus consume various small aquatic insects, crustaceans and worms.
Teleocichla is a genus of fish in the family Cichlidae found in the Tapajós, Xingu, Tocantins and Jari River basins, which are part of the Amazon River Basin in Brazil. All species are rheophilic, and highly elongated in shape. They generally are smaller than 9 cm (3.5 in) in length, making them some of the smallest cichlids of the Americas. Only T. preta can grow larger, reaching about 12 cm (4.7 in). Since restricted to areas with fast currents, they are particularly vulnerable to the building of dams, and the Belo Monte Dam may cause the extinction of T. centisquama. Other species recognized as threatened by Brazil's Ministry of the Environment are T. cinderella, T. prionogenys and T. wajapi.
The bigeye chimaera is a species of fish in the family Chimaeridae. It is found in Chile and possibly Ecuador. Its natural habitat is open seas. It is only known from the preabyssal zone off Valparaiso, and may occur as far south as Valdivia and as far north as the Galápagos Islands and Nicaragua and Guatemala, so may be more widespread, but species research is not abundant.
The Albert lates is a species of lates perch endemic to Lake Albert in Africa. This species is found in open waters at depths of from 20 m to 40 m. It can reach a length of 29 cm TL. It is commercially important and is also popular as a game fish.
Lethrinops macrophthalmus is a species of cichlid endemic to Lake Malawi where it is known to occur in the Nkhotakota area. It prefers habitats with patches of Vallisneria. This species grows to a length of 12 centimetres (4.7 in) SL.
Rhamphochromis macrophthalmus is a species of piscivorous cichlid endemic to Lake Malawi where it prefers open waters at depths of from 30 to 109 metres. This species can reach a length of 28.9 centimetres (11.4 in) SL. It can also be found in the aquarium trade. FishBase treats this species as a valid species, but the Catalog of Fishes treats it as a synonym of Rhamphochromis longiceps, as does the IUCN.
Tropheops macrophthalmus is a species of cichlid endemic to Lake Malawi. This species can reach a length of 11.5 centimetres (4.5 in) TL. It can also be found in the aquarium trade.
Sven Oscar Kullander is a Swedish biologist specialised in ichthyology. He primarily researches cichlids – notably the genus Apistogramma and the Cichlasoma-complex – and other tropical fresh water fishes. He also has been working with endangered fish species in Sweden.
Synodontis macrophthalmus is a species of upside-down catfish endemic to Ghana where it occurs in the Volta River basin. This species grows to a length of 20 centimetres (7.9 in) TL.
Acrossocheilus macrophthalmus is a species of ray-finned fish in the genus Acrossocheilus which is endemic to northern Vietnam.
The Nepalese snowtrout is a cyprinid fish species of the genus Schizothorax. This snowtrout was first collected in 1979 in the alpine fresh water Rara Lake located in Nepal's Rara National Park.
Heteroclinus macrophthalmus, the large-eye weedfish, is a species of clinid native to Indian Ocean waters around southern Australia where it prefers beds of sea-grass and algal reefs down to a depth of about 18 metres (59 ft). This species can reach a maximum length of 10 centimetres (3.9 in) TL.
Distoechodon is a genus of cyprinid fishes that occur in East Asia, one species endemic to mainland China and the other in both mainland China and Taiwan.
Syngnathus macrophthalmus is a pipefish species, found only around Suez and Hurghada in the northwestern Red Sea. It is a marine tropical demersal fish, up to 12.2 centimetres (4.8 in) total length.
Fang Fang Kullander, née Fang Fang, was a Swedish-Chinese ichthyologist.
The bigeye rockling is a species of fish in the family Lotidae.
Andinoacara biseriatus, is a species of fish in the family Cichlidae in the order Perciformes, native to the Atrato, Baudo, and San Juan River basins in Colombia.
