sclerite Bony upper layer lying on the fibrillary plate of a teleost scale.
骨片骨质的上层，位于硬骨鱼鳞微纤维板上。
The mandibles are usually lost, the labrum is reduced to a narrow transverse sclerite, and the labium is a small flap ( though its palps retain quite large).
上颚消失，上唇退化为一条窄横片，下唇退化为一小片（下唇须发达）。
sclerite Bony upper layer lying on the fibrillary plate of a teleost scale.
骨片骨质的上层，位于硬骨鱼鳞微纤维板上。
The mandibles are usually lost, the labrum is reduced to a narrow transverse sclerite, and the labium is a small flap ( though its palps retain quite large).
上颚消失，上唇退化为一条窄横片，下唇退化为一小片（下唇须发达）。
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