1. A dermal bone of the upper jaw which lies posterior to the premaxillary.
上颌的一个表皮硬骨，在前颌骨的后面。
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2. The medial crura are supported by their elastic fibrous attachments to the caudal septum and the soft tissue interposed between their feet and the premaxillary area.
内侧脚则通过它们与鼻中隔尾侧端的弹力纤维连接，两内侧脚之间及与上颌骨前区之间靠软组织支撑。
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3. The medial crura are supported by their elastic fibrous attachments to the caudal septum and the soft tissue interposed between their feet and the premaxillary area.
