Translation 2783

• • 206..
northern part of the Pacific Ocean from Guatemala to Alaska in the
east and from the Yang-tse estuary to Japan in tue west. According
to some•reports, common blackfish have been observed near tue Kurile
Islands and Kamchatka.
Genus Orcinus
.2itzinger,•1860 (Killer /halos)
This genus contains a single species.
•
Killer Whalo (Orcinus orna L., 1758)
5exual dimorphism is very marked in killer whales: the males
attain a length of ten metres, and the females 8.5 metres.
Pile. 65, KoenT Ka;
camen: enspci.
- Fig. 65. Killer whales: a) male; b) female.
•_.
The body of the killer whale is rather masSive, but fairly .
well stream-lined (Fig. 65).
The head is small, occupying one-sixth
of the body length; it is somewhat compressed, and hns no buak (it
has only a small "fringe..),
The fatty cushion is not developed..
Almost in the centre of the body (generally et heu' end
of tire front
hall') they:0 in a dorsal fin shaped like a scythe (in nuonlan, koà;
whence the "amssian nnme or the killer whale, kos.atkn : ), i'rom 1.-5 to .
1.7 metros tall in males and 1.0 metre in fol.ndes (19,-,-22,, and 10,-14 f?
of the body len•ths respectively).
flipbrs are oval in uhape
and broad (from 13 tu 21» of Lue bony lenGLn), nukes ore LEri:e,