of the, Fishery Board for Scotland. 283 



EXPLANATION OF PLATES. 



The figures in Plates IV., VIII., IX., X. and XI. are reduced ; those in 

 Plates v., VI., and VIL, are natural size. 



PLATE IV. 



Figures reduced slightly. 



Fig. 1. Nasal of G. polladiim, ?, 87*8 cm. 



2. Maxilla 



3. Premaxilla .. « 



4. Prteorbital n ,i 



5. 1st Suborbital n ,, 



6. 2nd Suborbital n n 



7. Basibranchials n n 



8. 3rd Suborbital n h 



9. 4th Suborbital 'n n (shewn upside down). 



10. 5th Suborbital t, 



11. Hyoniaudibular-Palatine Arch of O. pollachius, 0, 87 "8 cm. 



12. Dentary of G. pollachius, O 87 "8 cm. 



13. Articular i, ,, 



14. Ceratohyal Arch n „ 



15. Branchiostegal Rays m 



16. Urohyal n 



17. Innominates and Ventral Fin of G. pollachius, o, 87"8 cm. 



18. Pectoral Fin c. ,, 



19. Side View of Head „ 79 cm. 



20. Interoperculum ., 87 '8 cm. 



21. Branchial and Pharyngeal Bones \' " 

 21a. Lower Pharpigeal n i. 



22. Supratemporals u n 



23. Posttemporal n n 



24. Postclavicle fi n 



25. Supraclavicle n w 



26. Preoperculum n m 



27. Operculum n m 



28. Suboperculum m n 



29. Front view of Symphj'sis of Mandibles, showing rudimentary Barbel {h). 



30. Clavicle, Scapula, and coracoid of G. pollachius, O, 87 '8 cm. 



PLATE V. 



31. Skull of G. callarias, o, 103'o cm. View from above. Nat. size. 



32. The union of the Branchiostegal and Branchial Arches with the Basi- 

 branchials and the Lower Phar^'ngeals of G. callarias, o, 83 cm. From above. 



33. 



Skull of G. virens, o, 96 cm. View from above. Nat. size. 



34. M G. pollachius, o, 83 cm. 



PLATE VI. 



Fig. 35. Skull of G. callarias, p, 103 "5 cm. View from below. Nat. size. 

 !• 36. 11 G. Hrens, p, 96 cm. n n h 



" 37. M <r. pollachius,^, 83 cm. m m m 



