Laridjl.] osteologia avium. [Sterninje. 



the posterior margin, the pelvis is generally long, and the os pubis is not continued 

 far backwards beyond the ischium. The Laridm has the sternum long, the keel deep, 

 and the hinder margin indented by two fissures ; the pelvis is short, but the os pubis 

 is much elongated, as well as the hinder end of the ischium. 



FINIS. 



229 



