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180 SOME POINTS IN THE ANATOMY OF STEATORNIS. 
La) 
g 
: 
E 
Ss 
= 
s 
Pterylosis of Steatornis. 
symphysis (as in the Owls), where there are a few vibrisse, directed 
forwards, From this submaxillary feathered portion the inferior neck- 
tract springs; and behind the angle of the jaw a weak branch is sent 
up, on each side, to join the dorsal tract and head-covering behind the 
ears. A little lower down the inferior tract becomes more defined, 
