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!Fishes 2
Bony Fishes: Osteichthyes: Class Actinopterygii: Subclass Neopterygii
10
Biology
Undergraduate 4
11/11/2009
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Term
evolutionary history
 Definition
late permian
Term
pharyngeal jaws
 Definition
consolidated
Term
endoskeletal fin supports
 Definition
lower number
Term
scales
 Definition
ganoid in gars; ganoin lost in bowfin
Term
airbreathers
 Definition
highly vascularized gas bladder
Term
spiral valve
 Definition
reduced
Term
tail
 Definition
abbreviate heterocercal, derived
Term
pectoral fins
 Definition
lobed
Term
spiracles
 Definition
present
Term
dorsal fin
 Definition
finlets each w/ single spine and one or more rays
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