124 FISHES OF SAN DIEGO—EIGENMANN. 
The faunze of Nos. 1 and 2 are essentially alike and quite different 
from those of 3 to 5. The former are characterized by the presence of 
Scienide, Embiotocide, Atherinide; the latter, by the Scorpenide, 
Sphyrenide, Scombrida, ete. 
San Diego Bay is about 18 miles long by 1 to several miles wide. Its 
shores are sandy or muddy. There being no streams emptying into it 
it contains pure sea water. False Bay is much smaller and shallower 
and in winter receives the water of the San Diego River. 
Only two methods of taking fish are employed in these two bays, 
viz, by seine and by gill net. The latter is only occasionally used, but 
so effective is the seining that unless it is stopped (all of it is illegal) 
the fisheries of the bay will soon be worth nothing. 
Only two methods of fishing are employed off shore, trolling and 
hand-line fishing. The trawland gill nets are not used. The trolling 
is employed to catch Spanish mackerel and barracuda, the hand line 
to cateh white-fish and rock-cod. The gill net and troll could prob- 
ably be successfully used in the shoal water off Coronada Beach. 
The young of many of the species the adult of which are always found 
outside often enter the bay. For instance, tinkers abound in the bay, 
while adult mackerel are never found, except outside. Young barra- 
cuda are sometimes found in abundance, half-grown Spanish mackerel 
enter the bay, and the young Paralebrax clathratus are common while 
the adult is usually taken outside. 
Those specimens of outside species living in deeper water are always 
larger than those coming from shallower water. 
On the Cortes Banks the young of the species of the genus Sebastodes 
abound on the elevated ridge, while the adult are always found in deeper 
water. 
Those representatives of species abundant farther north are frequently 
much larger than the average size of the northern individuals. For 
instance, Sebastodes proriger reaches on an average 10 inches near San 
Francisco, while one found here measured about 24 inches. This may 
be partly explained by the fact that these specimens usually come from 
deep water. : 
The color of the same species of bottom fishes inhabiting the bay and 
the outside varies greatly, and even the same species at different depths 
or on different bottom, show remarkable changes. 
Sebastodes vexillaris varies from flesh color to the brightest scarlet 
and olive color. A local fisherman explains the color of this fish by 
the fact that fishes in shallow water are likely to be blacker, those in 
deep water lighter, and those on hard, rocky bottom of moderate depth 
bright red. Scorpena guttata deserves special mention. It is found 
both in the bay and outside, on the roeck-eod banks. Those found in 
the bay are dull colored, chiefly brown, variously mottled, while those 
from the outside have the brown replaced by the brightest scarlet, 
The color is so strikingly different that I have repeatedly thought the 
two fishes to be distinct. | 
