2 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Ganoidei \Ga*noi"de*i\, n. pl [NL. See {Ganoid}.] (Zo["o]l.)
One of the subclasses of fishes. They have an arterial cone
and bulb, spiral intestinal valve, and the optic nerves
united by a chiasma. Many of the species are covered with
bony plates, or with ganoid scales; others have cycloid
scales.
Note: They were numerous, and some of them of large size, in
early geological periods; but they are represented by
comparatively few living species, most of which inhabit
fresh waters, as the bowfin, gar pike, bichir,
Ceratodus, paddle fish, and sturgeon.
From WordNet r 1.6 [wn]:
Ganoidei
n : a group of mostly extinct primitive bony fishes
characterized by armor-like bony scales [syn: {Ganoidei},
{order Ganoidei}]
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Lake Atitlan, Guatemala
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