hypural notch The crease formed when the caudal fin is bent or flexed.
尾下骨凹槽当尾鳍被弯或弯候,形成摺痕。
hypural notch The crease formed when the caudal fin is bent or flexed.
尾下骨凹槽当尾鳍被弯或弯候,形成摺痕。
hypural bones The fan-shaped series of bones (sometimes fused to one or two plate-like bones) to which the caudal fin rays are attached.
尾下骨尾鳍鳍条附扇形成列硬骨(有融合成一或状硬骨)。
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