WebDec 4, 2006 · Actinopterygians, the ray-finned fishes, are placed in 3 subclasses, with, of living members, a total of 44 orders, 453 families, and about 26 890 species. Subclass Cladistia. One order, Polypteriformes, with one family, the bichirs, of 16 species in freshwater Africa. Subclass Chondrostei. WebFish are vertebrates (vertebrates have backbones) that live in water. They breathe using special organs called gills.

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WebPufferfish. Pufferfish can inflate into a ball shape to evade predators. Also known as blowfish, these clumsy swimmers fill their elastic stomachs with huge amounts of water (and sometimes air) and blow themselves up to several times their normal size. Some pufferfish species also have spines on their skin to ward off predators. Even if a ... WebSee all videos for this article. The methods of reproduction in fishes are varied, but most fishes lay a large number of small eggs, fertilized and scattered outside of the body. The eggs of pelagic fishes usually remain suspended in the open water. Many shore and freshwater fishes lay eggs on the bottom or among plants. Some have adhesive eggs. cinch loop knot

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WebThis is a list of fish families sorted alphabetically by scientific name. There are 525 families in the list. There are 525 families in the list. A - B - C - D - E - F - G - H - I - J - K - L - M - … WebFish are vertebrates that live in water and have gills, scales and fins on their body. There are a lot of different fish and many of them look very odd indeed. There are blind fish, fish with noses like elphants, fish that … WebKid's Corner - Fish Page. Test yourself with our. *NEW* Classification Game! cinch mb92834040