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Webster's 1913 Dictionary
ISOPLEURA
I `
so
*pleu "
ra,
n.
pl.
Etym:
[
NL.
See
Iso-,
and
Pleura.
] (Zoöl.)
Defn: A
subclass
of
Gastropoda,
in
which
the
body
is
symmetrical,
the
right
and
left
sides
being
equal.
Note:
The
intestine
terminates
at
the
posterior
end
of
the
body,
and
the
gills
and
circulatory
and
reproductive
organs
are
paired.
It
includes
the
chitons (
Polyplacophora
),
together
with
Neomenia
and
Chætoderma,
which
are
wormlike
forms
without
a
shell.
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