| Doumea gracila | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Amphiliidae |
| Genus: | Doumea |
| Species: | D. gracila |
| Binomial name | |
| Doumea gracila Skelton, 2007 | |
Doumea gracila [1] [2] is a species of catfish in the genus Doumea . It lives from Nyong to the Ntem rivers in southern Cameroon. [3] [4]
The Serranidae are a large family of fishes belonging to the order Perciformes. The family contains about 450 species in 65 genera, including the sea basses and the groupers. Although many species are small, in some cases less than 10 cm (3.9 in), the giant grouper is one of the largest bony fishes in the world, growing to 2.7 m in length and 400 kg (880 lb) in weight. Representatives of this group live in tropical and subtropical seas worldwide.
The term carp is a generic common name for numerous species of freshwater fish from the family Cyprinidae, a very large clade of ray-finned fish mostly native to Eurasia. While carp are prized quarries and are valued as both food and ornamental fish in many parts of the Old World, they are generally considered useless trash fish and invasive pests in many parts of Africa, Australia and most of the United States.
The freshwater whitefish are fishes of the subfamily Coregoninae, which contains whitefishes and ciscoes, and is one of three subfamilies in the salmon family Salmonidae. Apart from the subfamily Coregoninae, the family Salmonidae includes the salmon, trout, and char species of the subfamily Salmoninae, and grayling species of the subfamily Thymallinae. Freshwater whitefish are distributed mainly in relatively cool waters throughout the northern parts of the Northern Hemisphere.
Epomophorus is a genus of bat in the family Pteropodidae. They have a distribution throughout Africa.
Doumea is a genus of loach catfishes native to Africa.
Doumea chappuisi is a species of loach catfish found in the coastal rivers of Guinea, Ivory Coast, Liberia and Guinea-Bissau. It reaches a length of 11.4 cm.
Doumea thysi is a species of loach catfish found in Nigeria where it is found in the Cross River and Cameroon where it is found in that country's section of the Cross River and Ndian Department. It reaches a length of 6.5 cm.
Doumea typica is a species of loach catfish found in the Dja River and coastal rivers in Cameroon, the Republic of Congo and Gabon as well as possibly in the Democratic Republic of Congo. It reaches a length of 13.2 cm.
Piabucus is a genus of freshwater tetras in the family Iguanodectidae. All three species are found in South America, largely the Amazon and its major tributaries. None of them are longer than half a foot long, with the largest reaching a maximum size of 12.9 cm (5.1 in), and they are slender, with relatively deep chests and long pectoral fins. Their scales are pale or silvery, with lateral lines that stand out.
Palaeospinax is an extinct genus of shark which lived from the Early Triassic to the end of the Eocene epoch. Although several species have been described, the genus is considered nomen dubium because the type-specimen of the type species, Palaeospinax priscus, lacks appropriate diagnostic characters to define the genus.
Callirhytis is a genus of gall wasps in the family Cynipidae. There are more than 90 described species in Callirhytis. Wasps in this genus primarily induce wasps on oak trees in North America.
The glass headstander,, is a species of fish in the genus Charax. commonly known as the transparent tetra.
Iguanodectinae is a subfamily of small freshwater fish in the family Iguanodectidae. They are most prominently found in the Amazon river basin and its major tributaries, but they are also known from the Tocantins, Orinoco, and Paraguay rivers. It has two genera, Piabucus and Iguanodectes. Some species in the subfamily are taken from the wild for aquariums, like the red- and green-line lizard tetras. There is minor, but ongoing, debate regarding its taxonomy.
Phractura tenuicauda is a species of catfish in the genus Phractura. It has a length of 9.5 cm. It lives in the Congo river system.
Doumea reidi is a species of catfish in the genus Doumea. It lives in the Mbam River in Nigeria. Its length reaches 9.3 cm.
Doumea sanaga is a species of catfish in the genus Doumea. It lives in the upper Sanaga River in Cameroon, which it is also named after. Its length reaches 8 cm.
Doumea skeltoni is a species of catfish in the genus Doumea. It lives in the Loémé and Kouilou-Niari rivers in the Republic of the Congo. Its length reaches 4.5 cm. It is named after South African ichthyologist Paul H. Skelton.
Doumea stilicauda is a species of loach catfish in the genus Doumea. It is only known to live in the So'o River, a tributary of the Nyong River, in Cameroon. Its length reaches 17.5 cm.
Amphilius brevis is a species of catfish in the genus Amphilius. It lives in the middle and upper Congo River in the Democratic Republic of the Congo. Its length reaches 8.4 cm.
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