dorsal postcleithrum 



ventral postcleithrum 



Figure 187.— Triodon macropterus: lateral 



view of pectoral girdle, with inset showing 



full extent of scapula in lateral view, 



391 mm SL, Philippines. 



Parahollardia lineala Balistapus undulatus Acanthostracion quadricomis 



Triodon macropterus Lagocephalus laevigatus Carrthigaster rostrata 



Dicxion holocanthus 



Figure 188.— Lateral views of scapula and 



first (uppermost) actinost in representatives 



of all superfamilies, showing the completely 



enclosed scapular foramen of Triodon macropterus, 



unique among the gymnodonts and similar to 



the scleroderms. 



