.
L
a“:
_
_,
_
Ag0nidae
P0d0t/zecus sac/u
(Jordan et @
‘
38
Japanese PoaCher
TOKUB'RE
:_
//____.
*
"
N .ol‘?
—
_
—
..
lob.olf.
_nfu__d_
@
ch.opt.
_
::,îî
*——————9
hypos
—
tect.
°
_
N.3.
_
.
‘
_
c.cbl.
N.7.
vent.q
_
0
N.8.
cr_st_cb‘_
N.9.+10.
_
_
@
_
N.9..+10
med.Sp
med-s
'
——————-——Œ
-
5mm
lateral
ventfa‘
dorsa‘
___—_———————————M_
Descripve notes:
âïäîläëlîäîäb
,
Adults attain about 40cm in body length.
ŒËË>
Snout elongated. As the lower jaw is shorter than the upper,
' _
’
_
the mouth opens only on the ventral side.
Êîî?$äï®$ï
#)Îêh‘.
Eyes large.
Numerous
distinct groups of barbels present on
'_
the angles of snout and mouth.
One strong spine above each eye.
-
On both sides of head, there are granular and radial
_
protuberances.
'
'
Spinous scales present in four longitudinal rows on both
sides of body-.
_
Body color dark greyish—brown, ventral surface lighter.
Border of each fin blackish.
_
Bottom fish living at the sandy and muddy bottoms of the
continental shelf.
,
_
Extent of migration narrow.
Swimming movement not active. '
_
Eat small marine animals living at the sandy and muddy
_‘
: ,
bott0ms located by means of gustatory sense.
Found in the waters of the north, northeastern districts
'
:,
Japan's main island,
Hokkaido and east coast of Korea.
.
.
-,
;
î
'
Caught by trawlers.
'
'
-
Î
‘
Bulbus olfactorius hammer—shapèd, comparatively large and
.
:
_
closely adhered to lobus olfactorius. Lobus inferior egg—shaped
and large.
Lobus opticus oval and relatively small.
Corpus cerebelli flat, somewhat large, and slightly extended
posteriorly.
'
.
—
a
'
'
'
—
'
_
-