The ray-finned fishes (actinopterygii) are so called because they possess lepidotrichia or "fin rays", their fins being webs of skin supported by bony or horny spines ("rays")
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The ray-finned fishes (actinopterygii) are so called because they possess lepidotrichia or "fin rays", their fins being webs of skin supported by bony or horny spines ("rays")
All items (3)