Rhodeus is a genus of cyprinid fish, consisting of 23 species called bitterlings. The scientific name is derived from the Greek word rhodeos, meaning "rose". Most species in the genus are restricted to Asia, but two species are found in Europe.
Victor Gruschka Springer was an American biologist who was a Senior Scientist emeritus, Division of Fishes at the Smithsonian Institution's National Museum of Natural History in Washington, D.C. He was a specialist in the anatomy, classification, and distribution of fishes, with a special interest in tropical marine shorefishes. He published numerous scientific studies on these subjects; also, a popular book called "Sharks in Question, the Smithsonian Answer Book" 1989.
The pink corydoras is a tropical freshwater fish belonging to the subfamily Corydoradinae of the family Callichthyidae. It originates in inland waters in South America, and is found in the Meta River basin in Colombia. A maximum body length of 4.2 cm has been reported. It was named in honor of pet-book publisher Herbert R. Axelrod (1927–2017), who helped collect type series and sent it to the Senckenberg Museum in Frankfurt, Germany.
The rosy bitterling or Tairiku baratanago is a small freshwater fish belonging to the family Cyprinidae (carp), native to East Asia from the Amur River basin to the Pearl River basin.
Tanakia is a genus of cyprinid fish, consisting of five species that occurs in Eastern Asia. The type species is the Tanakia limbata.
The Russian bitterling, or spiny bitterling, is a temperate freshwater fish belonging to the Acheilognathinae sub-family of the family Cyprinidae. It originates in the Amur River basin in Asia, and is found in China and Russia.
The Kyushu bitterling is a temperate freshwater fish belonging to the Acheilognathinae of the family Cyprinidae. It originates on Kyushu Island in Japan. It was originally described as Acanthorhodeus atremius by Jordan & Thompson in 1914. The fish reaches a size of up to 6 cm (2.5 in), and is native to freshwater habitats with a pH of 6.8 to 7.8, a hardness of 20 DH, and a temperature of 10 to 25 °C.
Rhodeus fangi is a subtropical freshwater fish belonging to the Acheilognathinae subfamily of the family Cyprinidae. It originates in the Pearl River, Yangtze River in China. It was originally described as Pararhodeus fangi by C.P. Miao in 1934.
The European bitterling is a temperate freshwater fish belonging to the subfamily Acheilognathinae of the family Cyprinidae. It originates in Europe, ranging from the Rhone River basin in France to the Neva River in Russia. It was originally described as Cyprinus amarus by Marcus Elieser Bloch in 1782, and has been referred to in scientific literature as Rhodeus sericeus amarus. It is known simply as "the bitterling" in its native range, where it is the only species of its genus Rhodeus, and sometimes in the scientific literature, also, but this is technically wrong, being a leftover from the times when the European bitterling was united with its Siberian relative, the Amur bitterling, in R. sericeus. Properly, "bitterling" can refer to any species of Acheilognathus or Rhodeus.
Rhodeus haradai is a subtropical freshwater fish belonging to the Acheilognathinae subfamily of the family Cyprinidae. It originates in the Hainan province of China. When spawning, the females deposit their eggs inside bivalves, where they hatch and the young remain until they can swim.
Rhodeus rheinardti is a tropical freshwater fish belonging to the Acheilognathinae subfamily of the family Cyprinidae. It originates in the Perfume River, near Hué, Vietnam. It was originally described as Danio rheinardti by G. Tirant in 1883.
Rhodeus smithii, sometimes known as the Japanese rosy bitterling, Japanese bitterling, or Nippon baratanago is a temperate freshwater fish belonging to the Acheilognathinae subfamily of the family Cyprinidae. It originates in stagnant waters in inland rivers in Japan. It was originally described as Achilognathus smithii by Charles Tate Regan in 1908, and is also referred to as Rhodeus ocellatus smithii in scientific literature.
Rhodeus uyekii is a temperate freshwater fish belonging to the Acheilognathinae sub-family of the family Cyprinidae. It originates in inland rivers in South Korea. It was originally described as Pseudoperilampus uyekii by T. Mori in 1935.
Werner's catfish is a species of airbreathing catfish. It is found in Burundi and Tanzania. Its natural habitats are rivers and freshwater lakes. It is threatened by habitat loss. This species reaches a length of 23.0 cm SL.
The Eastern Province rocky, also known as rocky kurper, is a species of fish in the family Anabantidae. It is endemic to South Africa.
Maurice Kottelat is a Swiss ichthyologist specializing in Eurasian freshwater fishes.
Acheilognathus deignani is a species of freshwater ray-finned fish in the genus Acheilognathus. It is endemic to northern Vietnam in the Mekong River. It grows to a maximum length of 5.2 cm.
Chanodichthys dabryi, the humpback or lake skygazer, is a species of ray-finned fish in the genus Chanodichthys. This freshwater cyprinid is found in China and Russia where it ranges from the Amur River to the Yangtze. It is fished, but remains common. As presently defined, it is likely species complex. It reaches 42 cm in length and 700 g (1.5 lb) in weight.
Cottus szanaga is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is found in Mongolia and Russia. It reaches a maximum length of 8.2 cm. This species was first formally described in 1869 by the Polish naturalist Benedykt Dybowski with its type locality given as the Onon River in the Amur River drainage basin of Russia. The specific name szanaga is derived from Szanaga-sagasu, meaning "spoon fish" the Buryat dialect word for this fish n the Amur basin.
Helen K. Larson is an ichthyologist who specialises in the fishes of the Indo-Pacific.
