.Mackerel
A salt.water fish
which is of considerable importance to
the fishing
It
industry.
shoals
protection. The
moves
in
for
female lays
about
4OO OOO eggs.
Neoceratodus :
Lungfish
A bony fish with
large thin scales, lt
has gills and a single
lung and lives in stagnantwater. lt belongs
to the Dipnoi
or
lungfish.
Some scientists think
link
between fish and
thai this is a
amphibians; ...some
place them in either
group.
Latimeria:
Coelacanth
This "living" fossil was
discovered
in
1938.
These large, blue grey
fish are found in deep
water and their fins
are fringed
lobes.
Previously they were
only known
from
Devonianfossils. They
have adegenerate lung
and are related to the
Dipnoi.
The carp, trout, perch, eel and mackerel are all fish
with the following characteristics in common:
cold-blooded, aquatic vertebrates with a bony skeleton,
swim bladder present,
a
All
of gills covered with an
with flat, protective scales.
series
operculum and usually covered
these fish are placed
in the
group 0steichthyes.