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.
The dwarf wedgemussel is an endangered species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
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.
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.
The Georgian bitterling is a temperate freshwater fish belonging to the subfamily Acheilognathinae of the family Cyprinidae. It originates in the western portion of the Transcaucasia region of Georgia. It was originally described by Bogutskaya & Komlev in 2001. It reaches a maximum size of 6.8 cm (2.7 in).
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.
Light's bitterling is a temperate freshwater fish belonging to the subfamily Acheilognathinae of the family Cyprinidae. It originates in Russia and China, from the Amur River basin to southern China. It was originally described as Pseudoperilampus lighti by H.W. Wu in 1931.
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.
The Chipola slabshell is a part of the phylum Mollusca and the class Bivalvia. This species has suffered a large decrease with upwards of 75% of habitat lost. It is now confined to only a few remnant sites in small drainages within the Chipola River. The federal Endangered Species Act protects it as a designated threatened species by Florida's Endangered and Threatened Species Rule.
The Louisiana pearlshell, Margaritifera hembeli, is a rare species of bivalve mollusk in the family Margaritiferidae. This freshwater mussel is native to Louisiana in the United States, and was previously present also in Arkansas. It grows to a length of about 10 cm (4 in) and lives on the sand or gravel stream-bed in riffles and fast flowing stretches of small streams. Its life cycle involves a stage where it lives parasitically inside a fish. This mollusk is sensitive to increased sedimentation and cannot tolerate impoundments. Because of its limited range and its population decline, the International Union for Conservation of Nature has rated this mollusk as being "critically endangered".
The bitterling-like cyprinids form the cyprinid subfamily Acheilognathinae. This subfamily contains seven genera, although the Khanka spiny bitterling is often placed in Acheilognathus, and at least 75 described species to date. Over half of the species are in the genus Acheilognathus.
Acheilognathus macropterus is a species of cyprinid fish native to China and northern Vietnam. It grows to a length of 27.5 centimetres (10.8 in) SL.
The Nera Gorge-Beușnița National Park is a protected area situated in Romania, in Caraș-Severin County.
The Tokyo bitterling is a temperate freshwater fish of the carp family (Cyprinidae). Taxonomically, it belongs to the subfamily Acheilognathinae.
Rhodeus albomarginatus is a species of freshwater ray-finned fish in the genus Rhodeus. It is endemic to China, where it is found in the Lvjiang River of the Yangtze River drainage and uses the freshwater mussel Ptychorhynchus murinum as its host for spawning.
Shuanglianpi Wetland is a partially protected natural area in Yilan County in northern Taiwan. Situated 470 meters above sea-level, it contains a botanically rich, shallow lake, which, from the perspective of plant species density, is considered to be a wetland with global significance by the Forestry Bureau of Taiwan.
