50
-
THE BIOLG‘i OI‘
’
FISHES
’
Zuidersee-— and»
WàtèïS.'
în southef
regions the species épàWns înïæîêäter of'comparatiVely'high
’
->=teÿmperature and salinity; here the water is brackish and
'
=;‘GO‘1‘dÈ-æfThere is a Wide gap between
the
'
see ;, few specimens have been taken
Channel or Baÿ
Bf Biscay. Are we to suppose that it migrates “this distance
,
yearly, or that it remains s_OrneWhere in the Channel, where it
__
eludes cai3ture? In
the =o_—fi'gin of this branch
Ï
-
remains a mystery ; possibïÿt represents
’_
Of’Anch0Vy, as We can mere
'
‘
,
to the pleasan‘cer conditions ‘ of *
thanthe
reyerse‘.
_
i On the other hand, this particUlàt branchrhaÿhàve
,
sù'e’red
its enemies, Mackerel, -Tunnyg
'
'
_
others, and found a safe retreat fromtheir pursuit in the :
"Butno>denite solution céafbe given to
of
weùïd be the inVestigatio-of
:
the structural and” ëVèlopmetal dierences
f0Tnïs
‘-—
growing ùp
wideèdieÿ6nœ3I
Ï
,
The pricipäl.thing’ about— the=species so farmentmned '
Ï —=; Ï
,
is,—that the:ngratios
SOme
_Sapïdissüna,'ètc;):, go: Ÿ—f—ugtherï’ ad
in
_
’
,
Some
seas(Casp1an,
Lakes, and-Great *-Lâkes of
,:
Thesame Phenomenaaref0undamongihen_eayalhed
.
= ,
mdeepW3teïmtheopenSCa,and0th€æ,hkeMalloms (‘Che _
CaPeîa)comeclosemsh0remspawnîhus Ô‘OP—Smting
?
,
Ÿ
,
andfr eShwaœr>andthepïmC1palSpee1es ôf‘ÿthe “group HsCen‘d
Ï
,fivers' ghtwthrsourœswhstwlolefamhæbelong
.
'_
_
,
themuthefthnertowhlhmbelonsyetlkethe
?“
AnChOW,IÉISrarelyfëùn-d
Lit
=
mbltfd thttfmPdth