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Additional
cephalopod fin
English Wikipedia - The Free Encyclopedia
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Cephalopod fin
Cephalopod fins
, sometimes known as
wings
, are paired
flap-like locomotory appendages
. They are found in
ten-limbed cephalopods
(including
squid
,
bobtail squid
,
cuttlefish
, and
Spirula
) as well as in the
eight-limbed
cirrate octopuses
and
vampire squid
. Many extinct cephalopod groups also possessed fins.
Nautiluses
and the more familiar
incirrate octopuses
lack swimming fins. An extreme development of the cephalopod fin is seen in the
bigfin squid
of the family
Magnapinnidae
.
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