Order Summary for Zeiformes
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Main Ref |
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Order |
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Zeiformes dories |
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Class |
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Actinopterygii |
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Sister Order |
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Gasterosteiformes 15 M years |
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Ref.. |
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First Fossil Record |
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late Tertiary |
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Occurs in |
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Marine |
Fresh |
Brackish |
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Remark |
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Pelvic fin with or without a spine and 5-10 soft rays; caudal fin usually with 11 branched rays (13 in grammicolepidids); dorsal fin spines 5-10; anal fin spines 0-4; soft rays of dorsal, anal, and pectoral fins not branched; body usually thin and deep; jaws usually greatly distensible; no orbitosphenoid; simple posttemporal fused to skull; swim bladder present; branchiostegal rays 5-8; vertebrae 21-46. Caproids have the lowest number of vertebrae and grammicolepidids the highest. All species are marine, most are deep sea. |
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Classetymology |
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Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335. |
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Orderetymology |
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Greek, Zeus = the supreme deity of the ancients Greeks, 1839 + Latin, forma = shape (Ref. 45335). |
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Families |
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