320 
Part TIL — Tenth Animal Report 
EXPLANATION OF THE PLATES. 
Plate XIV. 
Fig. 1. Ovarian egg of turbot, 7th June 1891. x 24. 
Fi"\ 2. Egg near topknot and turbot caught in the tow-nets in St 
Andrews bay, 9th July 1891. x 33. 
Fig. 3. Egg of the same form, somewhat further advanced, with the em- 
bryo outlined, 8th July 1891. A group of vesicles appears near 
the centre. . x 33. 
Fig. 4. Egg of the foregoing form with the embryo fully half round the 
yolk, with the tail becoming free. x 33. 
Fig. 5. Lateral view of the egg of the foregoing species so as to show the 
position of the oil-globule. The body of the embryo is merely 
indicated. 
Fig. 6. Egg of the same with embryo far advanced, and with much pig- 
ment. The perivitelline space is larger. 25th July 1891. 
x 42. 
F'ig. 7. Sinistral post-larval (early) form, probably near top-knot. Spirit- 
preparation, x about 12. 
Fig. 8. A similar form at a later stage, captured in St Andrews Bay, in 
the fresh (not living) condition. Enlarged. 
Fig. 9. Post-larval form (brill ?) caught at the surface in St Andrews Bay, 
,11th July 1890. Enlarged. . 
Fig. 10. Sinistral post-larval form from deep-water (older stage than in 
fig. 7), 5 mm. in length. x about 12. 
Fig. 11. A further stage of the same, 9 '5 mm. in length, and with the left 
eye appearing on the ridge. 
Fig. 12. Free ovum of the frog-fish, with the characteristic pigment of 
the embryo. x about 20. 
Fig. 13. The same, to show the pigment round the oil-globule. Similarly 
magnified. 
Fig. 14. Young brill (?), with 80 + dorsal rays, andotocystic spines, from 
Smith Bank, 5th July 1889. 
Fig. 15. Unknown egg, with oil-globule and large perivitelline space. 8th 
July 1891. x 26. 
Fig. 16. The same, on the 9th July 1891. Similarly magnified. 
Fig. 17. Embryo further advanced (in the same egg), 10th July 1891. 
Similarly magnified. 
Plate XV. 
Fig. 1. Unknown post-larval form, 9*5 mm. in length, resembling halibut. 
From Smith Bank, 28th June 1889. 
Fig. 2. Larval long-rough dab (?), St Andrews Bay, 15th April 1892. 
x about 21. ' 
Fig. 3. Egg of solenetta (Solea luted), St Andrews Bay, 11th July 1890. 
p.v., perivitelline space ; c.v., clear vesicle. x 52. 
Fig. 4. Egg resembling that of the foregoing species, St Andrews Bay, 
6th April 1892. a, protoplasmic investment; z.r., capsule 
(zona radiata) ; mic, micropyle. x 52. 
