
1) Amia calva 2) Carnivorous freshwater fish 3) Dogfish 4) Dull-green freshwater fish 5) Fish 6) Ganoid 7) Ganoid fish 8) Grindle 9) Living fossil 10) Mudfish
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1) Dogfish 2) Grindle
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https://www.crosswordclues.com/clue/bowfin

Bowfins (Amia calva) are basal bony fishes related to gars in the infraclass Holostei. Common names include mudfish, mud pike, dogfish, griddle, grinnel, cypress trout and choupique. They are regarded as taxonomic relicts, being the sole surviving species of the order Amiiformes which dates from the Jurassic to the Eocene, persisting to the presen...
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http://en.wikipedia.org/wiki/Bowfin

• (n.) A voracious ganoid fish (Amia calva) found in the fresh waters of the United States; the mudfish; -- called also Johnny Grindle, and dogfish.
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http://thinkexist.com/dictionary/meaning/bowfin/

(Amia calva), freshwater fish of the order Amiiformes (superorder Holostei); it is the only living representative of its family (Amiidae), which ... [2 related articles]
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http://www.britannica.com/eb/a-z/b/101
Bow'fin` noun (Zoology) A voracious ganoid fish (
Amia calva ) found in the fresh waters of the United States; the mudfish; -- called also
Johnny Grindle , and
dogfish .
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http://www.encyclo.co.uk/webster/B/87

The bowfin or mud-fish (Amia calva) is a ganoid fish found in still water in the USA. Like its allies it has a well-developed swim-bladder, which functions as a lung, the animal rising to the surface to gulp air.
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USS Bowfin was an American submarine of 1525 tons displacement launched in 1942 which saw action during the Second World War. USS Bowfin was powered by diesel engines providing a top speed of 21 knots and was armed with one 4-inch gun, two 20 mm Oerlikon anti-aircraft guns; six 21 inch bow torpedo tubes and four 21 inch stern torpedo tubes.
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[
n] - primitive long-bodies carnivorous freshwater fish with a very long dorsal fin
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http://www.webdictionary.co.uk/definition.php?query=bowfin
grindle noun primitive long-bodied carnivorous freshwater fish with a very long dorsal fin; found in sluggish waters of North America
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https://www.encyclo.co.uk/local/20974

North American fish
Amia calva with a swim bladder highly developed as an air sac, enabling it to breathe air. It is the only surviving member of a primitive group of bony fishes
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https://www.encyclo.co.uk/local/21221

a carnivorous ganoid fish, Amia calva, found in sluggish fresh waters of eastern North America. Also called
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https://www.infoplease.com/dictionary/bowfin
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