180 UPPER CRETACEOUS-TELEOSTS 
The supraoccipital contacts the frontals anteriorly, and separates the parietals. 
It extends down on to the posterior face of the neurocranium where it gives rise to a 
small backwardly directed crest which does not extend above the plane of the skull- 
roof. Laterally the supraoccipital meets the epiotic in a pronounced suture. 
st.s.c 
Fic. 83. Prionolepis cataphractus (Pictet & Humbert). Neurocranium in dorsal view. 
The broken line on the right side of the figure indicates the course of the sensory canals. 
