Translation 2783

..... 179.
The hea.d occupies 20,.-25;.; of the body.length; it is 1o.r`;er
in Etdults.. above it looks like an isosceles trir:.ndle with a
medial crest, unlilce the b.-Load, spa6.e-silap:.d head of tn, blue whale.
'!°he eyes are small, and lie above the corner of the mouth. The lower
jaw is large and stronr;•ly convex laterally, arid when the sloutn is
closed it projects 10-20 cm beyond tne tip of t,)e snout.
'l'cze body colour is not uniform. `2lIe dorsal 'part is dar.lc-t.,rey,
but trcc .,id.es l;'ra.du.llly belcorae l,i,;lltc:r in colour a,.cl €;ra(.e into white
on the ventral surface. In tne pos^tex:i.or (and solilotilaes also the
anterior) half of the body one finds small greyish-white spots. The
flùkes and tne flippers are white underneath.
The lower jaw has a
characteris ^ic colour: t).e front quarter on the right side. of the jaw
is white or greyish-white, ^,radually de.rkenind towards tue tip (tire
inner side is dark-grey), but the left half of the jaw is ei,tirely
dark on the outer side and light-grey on the inner side.
The two rows of baleen plates are uniteù by xods at the tip
of the snout., ,i,ach row .contains from 260 to .4.75 baleen plateu. The
largest of these lie at the beginning of the posterior third of the
row, and reach a length of 70-90 cm.•k On t:-.e rieht side from one-f ifth
A!na.le 16.4 )metres long taken in P.ntarctic waters was
found to have baleen plates '142 cm Ion,-, and a fe)n„le 21.5 metres in
len{;th ]rad. balceen plates as lauon as 143 cri, 1on,-;.
to one-tihir.d of the length of the row consists of plates that az'e.
white or almost ye7.lot'r; sometimes tlles'e occuj;y as much as half of -r)ie.
row, wil(_,reas tne rest of the plates on t^ie ri^,It side and, all those
on tne left side are dark-grey. , The frinf-^e is fine, long, and white,
or white -wit'ri a yellow. t•in&e.
r'lIe number of vertebrae varies, but is u.,ually front 60 to 63
^ seven cervical, 15 or 16 tiiora.ciç, 13 to 16. lu::lbc,.r.', and 24
1:o 27
caudal) . ','her.e are from 14 to 16 ribs, 1;lo2t oiten 15, only the first
pair bei.rr,, joineci to the sterr)uhL.
series are tlik: lon;,est.
The ribs in t:Iu. centre of trie
1'he
fin wha.le is. wiciuly di'stributeù, ^a..d is 1'ound in all tne
C)cte,3n.S of both l'teïlliS j)he2'e:, and t.ie se7.s adjacent Lo tJli)r:l. J. t occur8
.Cl,o:i'l t:1 C..! edtrïe;^ of the ice-fields to troZ,ica1 wet.ce3,:,. .,onicti:Ats t11iS.
;Sl)oC%l.e.) is Ù L1'fe]:onnt),tl.'ted 1.ntU a il(7rC^li;]:I -;lt:f!I].Ei(•la_1:C: race 13.
(l^.llf'' ^, , 17^).., i1.11C1 (L „^^ul• ilt::]:i -•11(3L't.LF3j IICI•G'l) l tc: ' _i. I,,, i^ tCi^'1^ t':1 .S^.l.'l',
1 ^,).