Definitions for ostariophysi
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Ostariophysi, order Ostariophysi(noun)
in some classifications considered a superorder comprising the Cypriniformes and the Siluriformes
Ostariophysi is the second-largest superorder of fish. Members of this superorder are called ostariophysians. This diverse group contains almost 8,000 species, about 28% of known fish species in the world and 68% of freshwater species, and are present on all major continents except Antarctica. They have a number of common characteristics such as an alarm substance and a Weberian apparatus. Members of this group include fish important to people for food, sport, the aquarium industry, and research.
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