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The wels catfish (/ ˈ w ɛ l s / or / ˈ v ɛ l s /; Silurus glanis), also called sheatfish or just wels, [2] is a large species of catfish native to wide areas of central, southern, and eastern Europe, in the basins of the Baltic, Black and Caspian Seas.
Young Mekong catfish do exhibit barbels and oral teeth, but these features diminish as they age and are absent by the time they grow to be 30–50cm in length. [3] Mekong giant catfish are one of the largest species of freshwater fish. In 2005, the Mekong giant catfish attained the Guinness World Record for the world's largest freshwater fish.
Bagarius yarrelli, also known as the goonch catfish, giant devil catfish, or simply Goonch, is a very large species of catfish in the genus Bagarius found in rivers in the Indian subcontinent. The species reaches up to 2 m (6.6 ft) in length. [ 2 ]
Brachyplatystoma is a genus of catfish from the family Pimelodidae. [1] As the occasionally used common name goliath catfishes indicates, this genus includes some of the largest species of catfish, including the piraíba, B. filamentosum, which reaches up to 3.6 metres (12 ft) in length; though the other species (and indeed most individuals of B. filamentosum) don't reach this length. [2]
The vundu is the largest true freshwater fish in southern Africa, reaching up to 1.5 m (5 ft) in length and 55 kg (121 lb) in weight. [2] ( Bull sharks are also found in southern Africa and reach a larger size, but occur in both fresh and saltwater.)
The giant talking catfish or giant raphael catfish (Megalodoras uranoscopus) is a species of thorny catfish that is native to the Amazon Basin in Bolivia, Brazil, Colombia, Ecuador and Peru. This species grows to a length of 60 centimetres (24 in) SL (for a female specimen) and a maximum weight of 4.6 kilograms (10 lb).
Cathorops dasycephalus, the big-belly sea catfish, is a species of sea catfish. It is found in clear waters at depth between 10 and 30 m in the eastern Pacific from central Mexico to Ecuador. Maximum recorded body length is 29 cm. [1] [2]
It is the most species-rich genus of catfish in North America, [1] native to the central and eastern United States, and adjacent parts of Canada. [2] Their fin spines contain a mild venom with a sting comparable to that of a honey bee. [1] Nearly half the species of madtom catfishes were described in a single comprehensive revision of the group.