36 THE DOG'S SKULL. 
THE HYOID BONES. 
The hyoid bones serve for the attachment of the 
root of the tongue and the larynx ; in the dog 
they consist of a body, and two anterior and 
posterior cornu. 
a. The body of the hyoid. 
i. The basihyal is a flat bar-like bone, 
having its terminal portions turned 
dorsally and thickened. It forms the 
ventral portion of the hyoidean 
apparatus. 
Fig. 5.—Canis famtliar’s. Hyoidean apparatus, front view. 
( w. E. C.) 
S H. Stylohyal. EH. Epihyal. CH, Ceratohyal. BH. Basihyal. TH. 
Thyrohyal. AC. Anterior cornu. PC. Posterior cornu. 
b, The posterior cornu. 
ii. The thyrohyal articulates with the 
basihyal and is united with the 
thyroid cartilage of the larynx; it 
