Flsure liS.—Triodon iruicroptenu: poitcrior 

 view of skull (left), with, below, lateral and 

 posterior views of Hrst abdominal vertebra; 

 posterior view of orbit (right) (cross section of 



skull; dashed lines represent cut surfaces of 



frontals and parasphenoid), with, below, lateral 



view of basisphenoid (anterior to left); 



391 mm SL, Philippines. 



ceratobranchials 



'^C^ C^C=^ basibranchials 



epibranchials // jT //^ <??/ "hypobranchials 



pharyngobranchials 



Figure 184. (opp. page)— TViodon 



macropterus: dorsal (left) and 



lateral (right) views of skull, 



391 mm SL, Philippines. 



.^ 



T4 



interhyal 



pihyal 



Figure 186. (right)— TViodon 



macropterus: dorsal view of branchial 



arches (extended on lower side); 



lateral view of hyoid arch; dorsal 



and lateral views of urohyal; 



391 mm SL, Philippines. 



dorsal 

 lateral 



urohyal 



dorsal hypohyal 

 ventral hypohyal 



branchiostegol rays 



