Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivores (species that eat dead material on the bottom), and even to a tiny parasitic ...

2003年1月1日 · The present description is based on the anatomy of ictalurids (description by Grizzle and Rogers, 1976), which are generally omnivorous and opportunist (Bruslé and Quignard,

Internal anatomy In many catfish, the humeral process is a bony process extending backward from the pectoral girdle immediately above the base of the pectoral fin. It lies beneath the skin where its outline may be determined by dissecting the skin or probing with a needle.[21] The retina of catfish are composed of single cones and large rods.

Catfish (or catfish; order Siluriformes or Nematognathi) are a diverse group of ray-fin fish. The catfish is named for its prominent tentacles, similar to the cat’s whiskers. The size and behaviour of the catfish come from three existing species, the Mekong giant catfish in Southeast Asia, the Eurasian catfish and the Pilayba in South America ...

2010年7月26日 · A visual "hover over" aide showing the part of the fish that a commonly used term refers to.

Catfish (order Siluriformes) is one of the largest orders of teleosts containing ∼4100 species, representing ∼12% of all teleosts and ∼6.3% of all vertebrates (Eschmeyer and Fong, 2014; Wilson and Reeder, 2005). Most catfish have a cylindrical body with a flattened ventral to allow for benthic feeding (Bruton, 1996).

The two photographs below show a freshwater Channel Catfish. The first is of the entire body with lines drawn to different external features. The second is of the head of the Catfish. Here you can see many of the smaller areas that are located between the pectoral fin and the internal nare.

Journal of the Catfish Study Group Vol. 16 (3): September 2015 3 Contents Editorial 5 From the Chair 6 The true identity of Hypostomus plecostomus (Linnaeus 1758) 8 UK import roundup 10 An introduction to catfish anatomy: body, fins and skin 12 Go Wild Peru: part one 20 Aquarium technique: an automatic top-up system 27

Like all native North American cat- fishes, a channel catfish has a body is located on the back between the dorsal and caudal fins (Fig. 1). One conspicuous characteristic of all catfish is the presence of barbels around the mouth.