4B ME. W. P. PYCEAFT ON THE MOEPHOLOGT OF THE OWLS. 



Fig . 4. Skull of Bubo capensis, showing the large postorbital process and a well-marked temporal fossa ; 

 the only skull in this series, it is to be noted, in which this is normally developed. 



5. Skull of Photodilus badius, for comparison with Asio and Strix. 



6. Skull of Speotyto cunicularia, showing the large postorbital process ; a large triangular plate on the 



jugal ; and the temporal fossa bridged by the squamoso-parietal tympanic wing. 



7. Skull of nestling Syrnium aluco, showing sutures. Compare the form of the squamosal, and its 



relations to the parietal and frontal, with that of Speotyto, fig. 8. 



7 a. Inner yiew of the same. — Note the position of the squamosal. 



8. Skull of nestling Speotyto cunicularia, showing sutures. — Note the form and size of the 



squamosal, and its relation to the frontal, and compare with fig. 7. 



8 a. Inner view of the same. — Note the great amount of the squamosal surface visible from the 



inside of the skull. 



