24 ANATOMY OF THE DOMESTIC FOWL 



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52. 



FIG. 4. The skeleton of the domestic fowl, i, Os incisivum. 2, External 

 nasal opening. 3, Os nasale. 4, Os lachrymale. 5, Lamina perpendicularis. 

 6, Os dentale. 7, Os palatine. 8, Os quadrato-jugal. 9, Os pterygoideum. 10, 

 Os quadratum. u, Os articulare. 12, External auditory canal. 13, Atlas. 

 14, Os carpi radiale. 15, Radius. 16, First finger. 17, Os metacarpus. 18, 

 Second finger. 19, Third finger. 20, Os carpi ulnare. 21, Ulna. 22, Humerus. 

 23, Thoracic vertebras. 24, Scapula. 25, Os ilium. 26, Foramen ischiadicunu 

 27, Caudal vertebra?. 28, Pygostyle. 29, Foramen obturatum. 30, Osischium. 

 31, Processus uncinatus. 32, Vertebral rib. 33, Os claviculum or furculum. 

 34, Os coracoideum. 35, Os femoris. 36, Os pubis. 37, Body of sternum. 38, 

 Lateral internal process of sternum. 39, Costal process of sternum. 40, Sternal 

 crest, cristi sterni, or keel of breast-bone. 41, Sternal rib. 42, Lateral external 



