258
THE BlOLOGY OF_ FISHES
E
=.
we . _
that these spines and poisons
_îÏÏÏ_
delibera‘cdy iisedby the shes as weapons of oence, just,
as the shakes use them, we can hardly call them adaptations.
—’
,
Spines are the common inheritance of many shes and it is
…
well-known that the blood and serons uid of one animal is
;
a deadly poison to other animals. That the latter may be,so
Î
used, however, would appear from the following account of :
,
the. Porcupine-sh given by Darwin in his Voyage of a
.-Î:
,
Naturalist.
'
.
,
_
_
Ï
Î; _“ One day I was amused by watching the habits of the
;
Diodon. _. .This Diodon possessed several means of defence. Ï
It could give a severe bite, and could eject water from its
meuth to some distance, at the same time making a curious,
Î' Ë
the movement of its jaws.
By the ination of its
with which the skin is covered, become
…_-Ë
_
‘
Ï.But
_mostcurious circùmstance is,
of its belly, when handled, a
È
'
mœt-, bemtifül- carmie-red
matter, which, stains
.ivorÿ and paperin
a manner that—the tintis
retained with all its brightness to the present day.
'Ê
,
quite ignorant of the nature and Use of this secretion. ,_
I h‘ciYÔ
,
Dir. Allan, of Fortes, that ,heÇhas, frequently
—Ïfounda:Diodon, oati‘ng alive and distendèd,—inthestomach
_
Shark; and that on several occasions
known -
it to eat its way,
through-thegc0aitsro£ the.
,
stomach, but through the sides
'
:;ius been killed» Whoi>WOüld eve1bavemagmedthat
—»a;1ittlsssftj,sh couldrhavedestr0yedthegreatandsavage
'
1l-— —i:=i:
;ii'ïÿÏ
,
.
Such a; ,Dibdàn _élèärliy';dè5eiÏe$ïä?ÿtë'-—livë;:buit how many :F'îîlëî
"
escape'_'f from
Diodon
,
b'31ngrenderedinnocuousbyone bite ’of;the Shark’s
;Ï,Sfäl_sQ
But itïappears, that when it has run the:
%“ gauntletofthe‘œethand—arrived in
it, has the 'Ïî
:
'
sensetogweo:iha secretion. which count€ra€tS… the. acid-‘
;
Jmœsforasuch1eny10ng umetoenablættobom fit's
'
î
“
‘Îi
THE BlOLOGY OF_ FISHES
E
=.
we . _
that these spines and poisons
_îÏÏÏ_
delibera‘cdy iisedby the shes as weapons of oence, just,
as the shakes use them, we can hardly call them adaptations.
—’
,
Spines are the common inheritance of many shes and it is
…
well-known that the blood and serons uid of one animal is
;
a deadly poison to other animals. That the latter may be,so
Î
used, however, would appear from the following account of :
,
the. Porcupine-sh given by Darwin in his Voyage of a
.-Î:
,
Naturalist.
'
.
,
_
_
Ï
Î; _“ One day I was amused by watching the habits of the
;
Diodon. _. .This Diodon possessed several means of defence. Ï
It could give a severe bite, and could eject water from its
meuth to some distance, at the same time making a curious,
Î' Ë
the movement of its jaws.
By the ination of its
with which the skin is covered, become
…_-Ë
_
‘
Ï.But
_mostcurious circùmstance is,
of its belly, when handled, a
È
'
mœt-, bemtifül- carmie-red
matter, which, stains
.ivorÿ and paperin
a manner that—the tintis
retained with all its brightness to the present day.
'Ê
,
quite ignorant of the nature and Use of this secretion. ,_
I h‘ciYÔ
,
Dir. Allan, of Fortes, that ,heÇhas, frequently
—Ïfounda:Diodon, oati‘ng alive and distendèd,—inthestomach
_
Shark; and that on several occasions
known -
it to eat its way,
through-thegc0aitsro£ the.
,
stomach, but through the sides
'
:;ius been killed» Whoi>WOüld eve1bavemagmedthat
—»a;1ittlsssftj,sh couldrhavedestr0yedthegreatandsavage
'
1l-— —i:=i:
;ii'ïÿÏ
,
.
Such a; ,Dibdàn _élèärliy';dè5eiÏe$ïä?ÿtë'-—livë;:buit how many :F'îîlëî
"
escape'_'f from
Diodon
,
b'31ngrenderedinnocuousbyone bite ’of;the Shark’s
;Ï,Sfäl_sQ
But itïappears, that when it has run the:
%“ gauntletofthe‘œethand—arrived in
it, has the 'Ïî
:
'
sensetogweo:iha secretion. which count€ra€tS… the. acid-‘
;
Jmœsforasuch1eny10ng umetoenablættobom fit's
'
î
“
‘Îi