Figure i~ I .—Rhinesomus triqueter: lateral 

 view of head, 134 mm SL, Colombia. 



iupraocclpital 

 / epiotic 



suboperculum 



hyomandibulo 

 preoperculum 



metaplerygold 

 sympiectic 

 mesopterygoid 



Figure 172.— Ostrocion tuberculatum: 



lateral view of head, 54.5 mm SL, 



Aldabra Atoll. 



