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Stromateidae
Family, Bony fish (Actinopterygii), Marine
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Synaphobranchidae – Cutthroat eels
Family, Bony fish (Actinopterygii), Marine
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Syngnathidae – Pipefish
Family, Bony fish (Actinopterygii), Marine, terrestrial
Pipe fish
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Synodontidae – Lizardfishes
Family, Bony fish (Actinopterygii), Marine
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Tetragonuridae – Squaretails
Family, Bony fish (Actinopterygii), Marine
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Tetraodontidae – Pufferfishes
Family, Bony fish (Actinopterygii), Marine
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Torpedinidae
Family, Cartilagenous fish (Chondrichthyes), Marine
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Trachichthyidae
Family, Bony fish (Actinopterygii), Marine
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Trachinidae
Family, Bony fish (Actinopterygii), Marine
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Trachipteridae – Ribbonfishes
Family, Bony fish (Actinopterygii), Marine
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Triakidae
Family, Cartilagenous fish (Chondrichthyes), Marine
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Trichiuridae – Cutlass fishes
Family, Bony fish (Actinopterygii), Marine
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Triglidae – Gurnards
Family, Bony fish (Actinopterygii), Marine
Gurnard
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Tripterygiidae
Family, Bony fish (Actinopterygii), Marine
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Umbridae
Family, Bony fish (Actinopterygii), Terrestrial
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Xiphiidae – Swordfish and billfishes
Family, Bony fish (Actinopterygii), Marine
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Zeidae
Family, Bony fish (Actinopterygii), Marine
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Zoarcidae
Family, Bony fish (Actinopterygii), Marine