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Order Summary for Batrachoidiformes
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Main Ref |
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Order |
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Batrachoidiformes toadfishes |
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Class |
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Teleostei |
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Sister Order |
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Gadiformes 20 M years |
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Ref. |
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First Fossil Record |
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middle Tertiary |
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Occurs in |
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Marine |
Fresh |
Brackish |
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Remark |
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Body usually scaleless (small cycloid scales in some); head large with eyes more dorsal than lateral; mouth large and bordered by premaxilla and maxilla; pore (foramen) in axil of pectoral fin in some; pelvic fins jugular (in front of pectorals), with one spine and two or three soft rays; three pairs of gills; gill membrane broadly joined to isthmus; branchiostegal rays six; four or five pectoral radials; swim bladder present; upper hypurals with peculiar intervertebrallike basal articulation with rest of caudal skeleton; no ribs, epiotics, or intercalars; no pyloric caeca. |
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Class etymology |
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Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335. |
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Order etymology |
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Greek, batrachos = frog + Latin, forma = shape (Ref. 45335). |
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Families |
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( n = 1 ) Batrachoididae |
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