Translation 2783

..... 209
from the anal orifice to the side and continues e.loni., ti'rl(, centre line
to the -vertical line ^i^ove the front eâ.^;e of the. flipper; in the
southern form that White aréa, sDreads over "Grre side above the celltre
line and continues almost to the eye ^in this case trie upy)er surl'ace
of t.r^e flipper is whi uej . ;j.ônictir:les the uor:sal fin also is jrart^ly
or wholly white.
r
` -- ^- _
^^.,>^^;^^ :'__._- '`s=^ ^:^..•^.,_ ...^...^.:.a:^ `^^
_- - " ^
•^ ^:^.
^;`.^
Pile. G8. I^c•iospl>i.^asi n;opcs.i;^ cniuu.si.
l''ig . 6 8 , .Ual"l' s porpoise.
9'llere are 91-96 ver-ceÙrae, and from 15 to 16 pairs of' ribsi
The northern form of Dal7.'s porpoise -- . 1'. d. dalli ^'rue,
1685 -- is found from 59o ad to 61 o N along tue coasts of Asia and
America ^ as far as southern Galifornia} , including the Bex'in^,^ aea
and the Sea of Okhotsk. The southern fort:l -- P. d, truei r,nd.rel•rs,
1911 -•-- is found ;;ou.th of 420--45o N.
uenus Lagenol"11ynClllls Cray, 1,)4:b
This genus contains at least f'iv, Species, `rlhich u;o to the
presen-L- have not been well studied. '.Ohe body shape is tilat typical
of ctol,)hins J`he head is small, with only a sli^htly--develolred fat.ty
cushion. !••rle beak is small. The dorsal. firs is locatecl at the rear
end of the front half of t;le body; it is tall, and its rear edge is
concave. The fl.iw:er.s are ].aneet-Unapod, in to 1II; -? of tue
body length, -.olcî the spread of the flul.;^:ü J.2 up to 25,. of tue body
length..'. I^ach jaw contains from 22 to 40 pairs of sulall teeth. There
are from 71 to 94 vertebrae.
11t1
of this 1,,en11S occur in bo'ti! 1:e'?liûU,l(.L'eS.
Atlantic
ijolphin ^Laç;eno^'I1IrlçVlll_. iicu'tu2l,r.'iy, 1cf.!16)
'.i`he;.e dolphills a.ttain a lenat1i o.c' 2.'j tL.c males beirit^
s].if;irt7.y i;tl^at thi: fe:iaales. The bec.k, t,Le corsai
fiu, aild al l t.ir^ doa:'s7.:L part ol' ttlr-, body cla.'e 09). in the
a'x'olst i art oi' Lhe body the black colour doc :, not ci,::te clown to tee
a.c;vc:,l 01, t - io 'i'llul:v are c1a:l::: cil-o1(.c, tee eyc::;. A