22 



Memoir Sears Foundation for Marine Research 



vomer (prevomer) 

 mesethmoid 



prefrontal - 

 (lateral ethmoid) 



frontal 

 sphenotic 

 pterotic 

 parietal 

 supraoccipital 



opisthotic 

 epiotic 

 exoccipital 

 parasphenoid 



basioccipital 



mesethmoid 

 vomer (prevomer) 



prefrontal 

 (lateral ethmoid) 

 frontal 

 orbitosphenoid 



pterosphenoid 

 alisphenoid) 



prootic 

 sphenotic 

 parasphenoid 

 opisthotic 



^^_____ -pterotic 



epiotic 



exoccipital 



basioccipital 



supraoccipital 



epiotic 

 exoccipital 

 pterotic 



.frontal 



opisthotic 

 basioccipital 

 parasphenoid 



prefrontal 

 (lateral ethmoid) 



mesethmoid 

 vomer (prevomer) 



orbitosphenoid 

 pterosphenoid (alisphenoid) 



supraoccipital 



parietal 

 .epiotic 

 pterotic 



exoccipital 

 opisthotic 

 basioccipital 



prootic 

 parasphenoid 



basisphenoid 



Figure 5. Neurocranium of Pomolobus mediocris. a dorsal view; b ventral view; c posterior view; d lateral 

 view. Drawn by Margaret G. Bradbury. 



