198
PELOEATID^.
smooth,
and
the
dermo-ossification,
as
it
develops,
produces
granular
asperities
which
may
become
con-
fluent
into
alveolar
ridges,
producing
a
pitted
appear-
ance.
In
very
old
specimens
the
sutures
between
the
nasals,
the
ethmoid,
and
the
fronto-parietal
may
become
obliterated.
Vomers
rather
large,
variable
in
shape,
extending
or
not
to
the
palatines,
which
are
strongly
ossified.
On
the
palatal
side
the
ethmoid
extends
posteriorly
to
about
the
middle
of
the
length
of
the
parasphenoid.
Latter
large,
J_-
shaped,
its
anterior
pointed
extremity
produced
to
between
the
palatines.
Pterygoids
not
reaching
the
palatines,
extensively
in
contact
with
the
parasphenoid.
Stapes
absent.
Mento-Meckelian
or
symphysial
bones
distinct
on
the
inner
side
only.
Hyoid
a
large
broad
cartilaginous
plate,
with
slender
postero-lateral
processes
anterior
processes
much
expanded
and
confluent
with
the
lateral
wings,
en-
closing
a
small
fenestra;
ceratohyal
cornua
with
short
posterior
portion
detached
from
the
body
of
the
hyoid
thyrohyals
large,
massive,
in
contact
at
the
base,
diverging
and
more
or
less
expanded
poste-
riorly.
Vertebral
column
once
and
a
half
to
twice
as
long
as
the
skull.
Spine
closed
above,
the
neural
arch
produced
posteriorly
into
a
strong
median
process
between
the
zygapophyses.
Three
anterior
diapo-
physes
strong
and
long,
especially
the
second,
which
bears
a
more
or
less
distinct
dorsal
knob
or
process
as
on
the
corresponding
rib
of
Discoglossus^
—
the
first
directed
obliquely
forwards,
the
second
and
third
nearly
horizontal;
the
following
short
and
slender,
directed
forwards.
Sacral
vertebra
with
very
strongly
dilated
diapophyses,
the
transverse
diameter
of
which
is
twice
and
a
half
to
nearly
three
times
in
the
axial
urostyle
short,
not
longer
than
the
sacral
wings,
and
fused
with
the
sacrum,
to
the
diapophyses
of
which
its
anterior
portion
contributes
if
these
processes
be
https://en.wikipedia.org/wiki/Tetrapod#/media/File:The_tailless_batrachians_of_Europe_(Page_194)_(Pelobates_fuscus).jpg
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