DIAGRAM OF EXTERNAL STRUCTURAL FEATURES 



1. Snout 

 1-4. Profile 



2. Cheek-bone (preoperde) 



3. Gill-cover (opercle) 



4. Nape 



5. Shoulder 

 5-6-7. Lateral line 



7. Base of caudal fin 



8. Ventral line 



9. Dorsal line 



10. First dorsal fin 



1 1 . Second dorsal fin 



12. Ventral fin 



13. Anal fin 



14. Caudal fin 



15. Pectoral fin 



