of the, Fishery Board for Scotland. 
341 
VI. Off Montrose. 
Off Montrose, 22 to 25 miles. Bottom, 6th and 7th February 1890. 
Sand-eel, 85 mm.; gobies [G. minutus), 33 to 45 mm. 
EXPLANATION OF THE PLATES. 
Plate X. 
Fig. 1. Surface of the capsule (zona radiata) of the egg of the lemon-dab 
(or lemon ' sole '). x 21. 
Fig. 2. Portion of the same more highly magnified. 
Fig. 3. Edge of the periblast in a developing egg of the same species. 
x52. 
Fig. 4. General view of the egg of lemon-dab shortly before hatching, 
15th July 1890. Fertilised on the 9th July. x 33. 
Fig. 5. Larval lemon-dab of the first day. Seen somewhat obliquely. 
Magnified. 
Fig. 6. Very young Coitus^ about 9 mm. In spirit. Enlarged. 
Fig. 7. Young weever {Trachimis vipera), about 15 mm. long, and with 
the opercula in rigid expansion, as seen from the dorsum under 
a lens, a, Young Caligus. Spirit preparation. 
Plate XL 
Fig 1. Larval lemon-dab of July 16, showing the elongation of the 
yolk-sac and the arrangement of the pigment. 
Fig. 2. Anterior region of an older form, with the yolk almost absorbed. 
Fig. 3. View of a larval lemon-dab from beneath, exhibiting the great 
elongation and comparative thinness of the body. 18th July 
1890. Magnified. 
Fig. 4. Early post-larval lemon-dab from eggs fertilised on the 9th July. 
21st July 1890. x about 24. 
Fig. 5. Larval fish of unknown egg, resembling that of a gadoid (1) e.g., 
a rockling. 23rd March 1891. x 33. 
Fig. 6. Dorsal view of the head and anterior region of unknown post- 
larval fish, with peculiar teeth and long pectoral fins, x about 
12. 
Fig. 7. Young lamon-dab, 25 mm. long. The preparation is somewhat 
injured, and the pigment removed from the fins, a, Young 
Caligus. Somewhat enlarged under a lens. 
Plate XIL 
Fig. 1. Unknown egg of a gadoid (^), resembling the egg of a large rock- 
ling. 9th March 1891. x 33. 
Fig. 2. The same egg two days later, viz., on the 11th March 1891. 
Fig. 3. Abnormal egg of grey gurnard, with five oil-globules. The rim 
has advanced about two-thirds over the yolk. 3rd April 1890. 
x21. 
Fig. 4. The same egg a week later. The oil-globules have for the most 
part coalesced, and of course are now fixed. 10th April 1890. 
x21. 
