Translation 2783

..... 233
North A-lâ.ntic Bottle-nosed Whale ('t^l^eroodon aut-pu7.latus)
In winter ti.ese bottle-nosed whales ],as:, ctirou^,ii the tbill-,pe rate
zone and, a:^e observec. in the waters ofï C;ape Verde, in tire r.editerra-•
nean Sea, and ^very rarely) in the naltic aea; in t,te wes-cé^-n part
of their range tr.ey are observed in Long Island âciund and. bou,;h from
the state of :tihode T:;land.
In spr.ing they miÜr.ate to more northerly reg,ions, often into
regions warmed by branches of the Gulf ^;tream. nc(:y arrive at Jan
hayon Island in i:arch ana A;^:ril; they appear off the coast of I,1orway
in npril. and later, Some of them go as far as Spitzber[;en, and they 156
have been recorded eveii at 760 i,;, at the very ed.,,;ei of the ice-field
and amonr, ice-floes. They are scarce in ti're: eastern par-i; of the
Barents ;^,ea, and have been recorded near iiovaya Zemlya; they have
been knôtan to enter the ^,lhite Sea. They r.ave been observed in stunarer
in llavis ^;trait and Hudson Bay, and in thé waters adjacent to the
eastern and western sides of southern Ureenlanci and Iceland. It is
believed that tne range of A;oruh Atlantic bottle-nosed whales is
limited by.the isotherm of 20-•j0 0. Their de]rartur.e soutnward has
been recordea as early as âeptember, but is tSrotracted until winter..
These whales feed mainly on cephalopods, in search of which
they dive to considerable depths. Fishes, holothurians, and starfishes
have very rarely been found in their stomachs. `Z he finding
of pebbles ^sometii7tes as large as a pear) in their ut^machs is evidence
of feedin; near the sea-bottom.
Little is known of their reproductive biology.. The a^e at
which they attain ;sexual maturity has not been precis'-ly' determined.
They mate in spring ^in May?). It is bc;lieved •cirat ges cation lasts
for about a year. -.r•he young are born in ;;;,.i.dna and sur:lmer, from 1..arch
to June inclusive. 3,1ew--born calves are from 18^ to 350 cl.l in length,
usuall.y about 250 crn. Milk-feeding lasts, perhaps, for four to eight
months, af tc:r which l^erioa tue youn^ are r.}. 5-1.. 9 i:letres in 1_ nLçtii
'i.'he herd insti net is m;lnif e;;•ced very sti:one;ly in bbt Clo--noseci
whales. t.:enerally t;cey live in oriall groups of ï:i•our two or three to
twonty anir,ts.l.i^, mi-l; sometimes hords of :evel.al tnlnci•r.'ocïU ai-e 20en.
A 4;.r.oup, 41irLCh i s Liaun.l,].y c(5ui).oa(.-)c.l of fem,i.l.e:c, yu a1; c,tlvau, ruRu adult
malc , is hcaded by a l111'ale.
l;ottl.i;-»no0ocâ wlur,le13
can lii,"Iy u.ndor.• wri.tor i:ov. 15 1,0 1,0 luirnttc:s,