128 UPPER CRETACEOUS TELEOSTS 
frontals. Anteriorly the frontal tapers very slightly to end at the rear of the short, 
broad, smooth mesethmoid. 
The supraorbital sensory canal ran within the frontal above the orbit, and gave off 
a branch which opened through a medial pore at the level of the centre of the 
orbit. The main supraorbital canal opened anteriorly on the edge of the frontal. 
f.d.pt 
; 10mm 
Fic. 56. Halec eupterygius (Dixon). Neurocranium in dorsal view. The broken line 
on the left side of the figure indicates the course of the sensory canals. 
