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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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