Translation 2783

..... 211 •
a creamy tinge. Gemetimes a dark.suripe runs irom the base of the
flippers to the corner of the mouth uig. 70); JJLO lengtn of the
flip„)ers is up to 18,, of tue body length (in trie Atlantic wnite-. sided
dolphin.it is only 12). 7,ach jaw contains from 22 to'26 pairs of .
teeth-6.7 mm in diameter. -
White-beaked dolphins are found in the waters. of the horth,
Atlantic on both sides of the ocean: in :Davis ;$trait, off Greenland
and tho à'aeroo Islands, and from the coast of Portugal to tia:: j;altic
uea and the Murman - Coast.
• Eorth Pacific White-sided Dolphin •
(pu9norhync1us oblicip_idens Gill, 1865)
Usually the upper part of the body, from thp frontal region
Io the flukes inclusive, is dark-coloured or grey. rfne ventral side
is dark-coloured almost from the tip of the snout to the anal .
orifice.
An elongated white patch runs forward along tue sides from above the
flippers, narrowing slightly above the eyes and encircling the frontal
region .(the tip of the snout and the chin are dark-coloured);
the rear part of the animal is dark (Fig. 71). A narrow dark stripe,
forming a curved line, runs forward from the base of the flippers to
the eyes; a narrow dark stripe also runs to the rear, forming.a border
to the colouring of the sides and the belly. The front parts. of
the dorsal fin, of the flippers, and of, the flukes.are light-coloured;
the marginsof the upper and lower lies are dark: A.narrow . dark
stripe Tuns from each eye to the corner of the mouth. There are wide
variations in the colouring of those dolphins. Tue upper jaw contains
from 30 to 32 pairs, and the lower jaw front 29 to 51 pairs, of teeth,
which point slightly outwards.
/..te
-- • 7.?"7:"...7.e , --.•
Pitc 71. TmooucancxHii EopoiToro,loomii ÔIUC ni. ii II
e0111.
71. hortn Pacific whilie-sided dol nie