Macro-anatomy of the Bones of Thoracic Limb in Dalmatian Pelican (Pelecanus crispus)

ABSTRACT In this study, the bones forming the poultry skeleton of the Dalmatian pelican were macroscopically examined. For this purpose, three Dalmatian pelicans were used. In the Dalmatian pelicans, the shoulder girdle (Ossa cinguli membri thoracici) is formed by the scapula, os coracoideum and clavicula bones. The scapula bone was short and flat. The humerus was a long bone with a cylindrical, pneumatic structure. Os corocoideum was also in the processus coracoideus tuber. Radius formed a joint with the ulna, and presented a slight slope from proximal to distal direction. Ossa carpi bones (skeleton manus) were composed of os carpi ulnare and os carpi radiale. The phalanx proximalis digiti majoris had a triangular shape on the dorsal side and two blade-shaped phalanxes. The bones that make up the structure of the Dalmatian pelican’s wing have significant similarities to other birds, but also to have many particular characteristics.

摘要：本研究对卷羽鹈鹕（Dalmatian pelican）的骨骼骨架进行了大体宏观检视。本次研究共选用3只卷羽鹈鹕作为实验对象。卷羽鹈鹕的肩带（Ossa cinguli membri thoracici）由肩胛骨（scapula）、乌喙骨（os coracoideum）与锁骨（clavicula）构成。肩胛骨短而扁平。肱骨为长骨，呈圆柱形且具有充气性结构。乌喙骨带有乌喙突（processus coracoideus tuber）结构。桡骨与尺骨形成关节，且从近端向远端方向呈现轻微倾斜。腕骨（Ossa carpi，即前肢骨骼skeleton manus）由尺腕骨（os carpi ulnare）与桡腕骨（os carpi radiale）构成。第1指近节指骨（phalanx proximalis digiti majoris）的背侧呈三角形，且带有2枚刀片状指骨。构成卷羽鹈鹕翼部的骨骼结构，不仅与其他鸟类存在显著相似性，同时也具备诸多独有特征。