SWIMMÏNG ANIMALS
'
suckers by means
which a sh'Can hold
’
object.
The common sucker (Leÿadogasær):"fou‘nd in our
rock—pools has a suctorial disC.formed bya
on
its under surface.
In this…càse. the fes‘emblaïœe—Of the
sucking organ to the orig—inètl‘ùs can stillbe seen. But any
lin-like appearance is completely lost in “the oase'otth‘e
-
sucking disc of the "Remora; This JSh *‘b‘eaïs “upon"?iÂtÏs
'
head an
looks …moreîflike the"rùbber
?a
sand-shoe‘ than
It is
Vèrÿ"1äoWer$ftil
sucker and with itthe
of sharks and so gets rapidly transport—ed—
,
131ace and incidentally is able to
ariy‘ remuantS"‘ôf
'
_
food that the greedy host maydro‘p That this
disc
is really a transformed back—n“
examination of the very early stages of
‘;
it is
‘
only about half an inch 10ng
like any other sh, butîas it agro‘wsthisn gradually m‘oves ‘
’
£orward until it comes to—lie;bnî
and in
the meantime its, structure“:=.isaaaltering-Ï‘ to that; 'Curi‘0îiè
"
dged form which
'The
smoking action of this
haswbeei1 tdisputed‘, »_an‘d it'is
thought by some that the clinging eéCtis broughtab0ùt
chiey by“
'
'
,‘
,
“
'
The habit of the suckingx-shiof fiastehing‘bnîto other sh
_
,
has been taken Ïadvantage
makes
use of the Remora—_ to Catch««0ther sh. 'The method “is
practised by natives of such widely separated districts“äs
.
the Caribbean .Sea,.Chinese,waters andfçthe.-Œ6rreSf Straits.
Although being used fof
sharks they-are chiey ùsed‘
has a thin line
to” its
sight”ing a turtle'
reach of it-andthen throw the Remora—towards it.
The‘Shl:
immediately swims to
‘\
'
—
,
=
—