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Fishes are a paraphyletic group and for this reason, the class Pisces seen in older reference works is no longer used in formal taxonomy.Traditional classification divides fish into three extant classes (Agnatha, Chondrichthyes, and Osteichthyes), and with extinct forms sometimes classified within those groups, sometimes as their own classes: [1]
The world's deepest living fish, Abyssobrotula galatheae, a species of cusk eel, lives in the Puerto Rico Trench at a depth of 8,372 meters (27,467 ft). [23] [25] Due to the extreme pressure, this appears to be around the theoretical maximum depth possible for fish. [26] [27] Stone loach
Common names of fish can refer to a single species; to an entire group of species, such as a genus or family; or to multiple unrelated species or groups.Ambiguous common names are accompanied by their possible meanings.
Fishes of the World is a standard reference for the systematics of fishes. It was first written in 1976 by the American ichthyologist Joseph S. Nelson (1937–2011). Now in its fifth edition (2016), the work is a comprehensive overview of the diversity and classification of the 30,000-plus fish species known to science.
Download as PDF; Printable version; In other projects ... This category contains subcategories corresponding to the taxonomy of fish as well as articles and ...
As of 2022, the oldest lungfish, and probably the oldest aquarium fish in the world is "Methuselah", an Australian lungfish 4 feet (1.2 m) long and weighing around 40 pounds (18 kg). Methuselah is believed to be female, unlike its namesake , and is estimated to be over 90 years old.
Police on Long Island are hunting for a 23-year-old man who allegedly stabbed his father to death inside their family home. Matthew Zoll allegedly murdered his father, 61-year-old Joseph Zoll ...
Download QR code; Wikidata item; Print/export Download as PDF; ... Pages in category "Fish classes" The following 5 pages are in this category, out of 5 total.