FISHERY BULLETIN: VOL. 70, NO. 3 



Table 3. — Sequence of ossification in larvae of Sebastes macdonaldi. The initial ossification of an element is in- 

 dicated by "X" and the point of the arrow indicates the larval size at which the element achieves the general 

 shape it will have in the juvenile and adult. 



4. 7 



5. 1 



5.2 



5. 6 



5.8 



6.7 



f).8 



7. 



7.9 



8. 5 



9.4 



9.7 



10. 



10. 3 



U. 3 



12. 



15.0 



15.9 



NEUROCRANIUM 

 Plerotic 

 Parasphenoid 

 Frontal 

 Parietal 

 Exoccipital 

 Basioccipital 

 Supraoccipital 

 Sphenotic 

 Lacrimal 

 Vomer 

 Epiotic 

 Prootic 

 Jugal 

 Antorbital 

 Mesethmoid 

 Dermosphenotic 

 Infraorbital 

 Nasal 



MANDIBULAR ARCH 

 Maxillary 

 Dentary 

 Articular 

 PremaxiUary 

 Angular 



PALATINE SERIES 

 Quadrate 

 Mesopterygoid 

 Ectopterygoid 

 Palatine 

 Metapterygoid 



HYOID ARCH and 

 OPERCULAR SERIES 



Opercular 



Preopercular 



Symplectic 



Subopercular 



Ceratohyal (anterior) 



Hyomandibular 



Interopercular 



Urohyal 



Ceratohyal (posterior) 



Interhyal 



APPENDICULAR SKELETON 

 Cleithrum 

 Supracleithrum 

 Post-temporal 

 Post-cleithrum (ventral) 

 Post-cleithrum (dorsal) 

 Scapula 

 Pelvic 



Proximal radials (pectoral) 

 Coracoid 

 Extra scapular 



AXIAL SKELETON 

 Neural arches & spines 

 Vertebral Centra 

 Ural Centrum 

 Haemal arches and spines 

 Uroneural 



Proximal radials (dorsal fin) 

 Proximal radials (anal fin) 

 Interneural 

 Ribs 



952 



