of the Fishery Board for Scotland. 
295 
head, body, and yolk-sac from the development of numerous chromatophores 
(PI. XVI. fig. 1G). So numerous are these over the yolk-sac that it seems 
to be densely spreckled all over with minute yellow grains. The majority of 
these chromatophores are still simple, only a few on the upper part of the 
yolk-sac being slightly stellate. Besides the yellow, the latter has many 
stellate black chromatophores. The latter, on the body, aro for the most 
part simple. A few of both kinds occur under the oil-globule. There 
are numerous myotomes. Slight muscular movements of the body occur, 
and occasionally a trace of contraction in the heart. Somewhat later (3 
p.m.) a considerable portion of the tail projected from the yolk, and, 
Kupffer's vesicle appeared (PI. XVI. fig. 17), the latter subsequently 
becoming considerably larger. 
On the '28th the chromatophores on the body and yolk-sac have increased 
in size, the yellow still being simple and circular ; whereas the black in 
most cases present a few ramifications. The embryos appear to be sickly — 
the heart being quiescent — the cold raw weather with an east wind probably 
depressing vitality. All the eggs lie on the bottom of the vessel. Kupffer's 
vesicle is still a single sphere. The tail has grown largely, and it is 
densely crowded with chromatophores. The yolk-sac is minutely vesicular 
from glands, as in the turbot and allied forms. The perivitelline space 
has increased, and the surface of the zona is corrugated. 
Next day the yellowish pigment was still more distinct, and the black 
were finely ramose (PI. XVI. fig. 18) ; indeed, the whole appearance of the 
embryo in the egg nearly corresponds with Professor Prince's sketch, so 
that the milt of the male turbot does not seem to have made any striking 
difference so far as can be seen in the embryo. 
Raffaele's sketch of the larva appears to have been taken from a somewhat 
altered specimen, as indicated in last year's Report. In some very 
interesting remarks with figures on larval fishes made by Professor Marion 
since the foregoing was published, he alludes to a form procured on the 
2nd March (PI. II. fig. 20), which he thinks may probably be the young of 
Trigla lineata ? So far as his very carefully made coloured figure, however, 
enables us to judge, it has a close resemblance to the larval brill, a 
species which M. Marion states is present in the Gulf of Marseilles, 
though by no means common. Moreover, a distinct pre-anal region of 
the marginal fin is present in M. Marion's figure, a condition which is not 
present in the species of gurnard studied at St Andrews, viz., Trigla 
(jurnardus. M. Marion was struck by the remarkable coloration of the 
species, for, besides the brown, black, and reddish-orange of the head, 
body, and yolk-sae, two broad bars invade the dorsal, and one occurs in 
the ventral marginal fin. The first dorsal bar is nearly over the yolk-sac, 
the second forms a nearly symmetrical pair with the ventral, rather in 
front of the middle line of the caudal region (i.e., from the rectum to the 
tip of the tail). It is possible the southern examples of the young brill 
are more brightly tinted than the northern. At any rate it would be well 
to re-investigate the subject, especially as no mention is made of the larval 
brill in Professor Marion's interesting observations, which form part of 
the finely illustrated series of papers from the Marine Laboratory at 
Marseilles, a series of papers which are a credit both to the Director of 
the Laboratory and to the Government which publishes them. 
10. On an Egg resembling that of the Solenette in 
St Andrews Bay. 
The excellent account of the eggs, larval, and early post-larval conditions 
