Figure 52. (opp. page, upper)— Baliatapus 



undulatus: lateral view of head, 



composite ba§ed on several specimens. 



ca. 120-124 mm SL, western Pacific. 



posttemporal 



\ ^/ V / /r, ^ 



posterior myodome cavity 

 parasphenoid 



pital basioccipital foramen magnur 



neural spine 



Figure 53. (opp. page, \ovieT)—BalUtapus 

 undulatus: dorsal (left) and ventral (right) vi< 

 of skull, composite based on several specimen 

 ca. 120-124 mm SL, western Pacific. 



Figure 54. — Balistapus undulatus: posterior 

 view of orbit (left) (cross section of skull; 



dashed lines represent cut surfaces of 



fronlals, supraoccipital, and parasphenoid) 



and posterior view of skull (right); below, 



posterior and lateral views of first 



abdominal vertebra; composite based on several 



specimens, ca. 120-124 mm SL, western Pacific. 



113 



