"
ADAPTATION": '
'
275
or _a part of a-1'gill prôjects into it;
In others
{Fig. 69), Osphromenidèe, and Some Siluroids) a bony support
is developed in the cavity from one'orimore of the branchial
arches, and the vascular
=lining—th6 support
receiVes
the
ordinary Venous
î=”
'
'
blood of the
gills and, after
:—.
...;Îaq
'
Cleansing it, returns it to; the
: 'f
_
,
dorsal” aorta;
'With this extra
'
-'
r
supply 'Of clean blood
the
'
ü "
'
J
'
,
'
head it_ is not surprising that -
_
ff@
—
these shes
are remarkable
'
'therrrntelhgence: «
_'
=
,
=:
»/—
,
:
=iIn other‘casesthe air passes!
:3
;
"
1
into "lung—like
of sacs;
-,
.
-
_
-
,
accessory breathmg organ of
-
Wh1Ch may even extend back—- Anfabas_ .. (From C et V.)
…
:
wards to near thetail (Saeco-f
.:
-
-'
!
,
,
…
branchus).- In the amphibious Cuchià of:Ïndia (AmPhi—
’
pnous), there is a distensible
-;
the head, communicating
lls it with air derÏVed
‘Ü
'
*
“
,
ansenlnthesame way “EVenï at“ the present
it"i‘s - ‘
.
“
'noticeable“ ithàt thé larval
ssomescause;or
'
another - are prevented
Sto:
surface
(ElaSmobranchs and Blenhies), “do not attempt
form îan=
air—bladder, whereas those
are hàtèhed: out at- the
surface almost always have it. ' The‘Herring‘ which hätol}ies
,
' _
,.
.
'
out at the bottom has the beginnings of an air—bladder
before it mariages to reach"'up to the surface,-but theprincipal
‘
development takes place at— the Surface. It is quite possible,
”therefore;Ïthat- the modern shes still take in a gulp of air;
as it were”, to
air—bladder“.
_»
”
arisen, the organ possessesseräe—räl
important functions,“ and “these,
reacted on”=the
,
strùcture,j It
_in”ât—h_e abd0mial cavity
verte—
,_
.
bmls c'élûr’î àrid*thüë actsÎasfa’ balancing' md’hÿdfæraü
Organ as well as a
gaiseS,= =These.threefilñëtiôs
are- “ ”quite distinct-‘ f'àd --havè clearly ‘Αcoie
conict ' at
ADAPTATION": '
'
275
or _a part of a-1'gill prôjects into it;
In others
{Fig. 69), Osphromenidèe, and Some Siluroids) a bony support
is developed in the cavity from one'orimore of the branchial
arches, and the vascular
=lining—th6 support
receiVes
the
ordinary Venous
î=”
'
'
blood of the
gills and, after
:—.
...;Îaq
'
Cleansing it, returns it to; the
: 'f
_
,
dorsal” aorta;
'With this extra
'
-'
r
supply 'Of clean blood
the
'
ü "
'
J
'
,
'
head it_ is not surprising that -
_
ff@
—
these shes
are remarkable
'
'therrrntelhgence: «
_'
=
,
=:
»/—
,
:
=iIn other‘casesthe air passes!
:3
;
"
1
into "lung—like
of sacs;
-,
.
-
_
-
,
accessory breathmg organ of
-
Wh1Ch may even extend back—- Anfabas_ .. (From C et V.)
…
:
wards to near thetail (Saeco-f
.:
-
-'
!
,
,
…
branchus).- In the amphibious Cuchià of:Ïndia (AmPhi—
’
pnous), there is a distensible
-;
the head, communicating
lls it with air derÏVed
‘Ü
'
*
“
,
ansenlnthesame way “EVenï at“ the present
it"i‘s - ‘
.
“
'noticeable“ ithàt thé larval
ssomescause;or
'
another - are prevented
Sto:
surface
(ElaSmobranchs and Blenhies), “do not attempt
form îan=
air—bladder, whereas those
are hàtèhed: out at- the
surface almost always have it. ' The‘Herring‘ which hätol}ies
,
' _
,.
.
'
out at the bottom has the beginnings of an air—bladder
before it mariages to reach"'up to the surface,-but theprincipal
‘
development takes place at— the Surface. It is quite possible,
”therefore;Ïthat- the modern shes still take in a gulp of air;
as it were”, to
air—bladder“.
_»
”
arisen, the organ possessesseräe—räl
important functions,“ and “these,
reacted on”=the
,
strùcture,j It
_in”ât—h_e abd0mial cavity
verte—
,_
.
bmls c'élûr’î àrid*thüë actsÎasfa’ balancing' md’hÿdfæraü
Organ as well as a
gaiseS,= =These.threefilñëtiôs
are- “ ”quite distinct-‘ f'àd --havè clearly ‘Αcoie
conict ' at