Biology Reference
In-Depth Information
FIGURE 13.3
Ontogenies of
shape for the species analyzed
in Fink and Zelditch, 1995.The
inferencedrawnfromthePW
shown in Figure 13.2 is that the
outgroup species
P. denticulata
and
S. gouldingi
have a localized
ontogenetic change in the length
and depth of the caudal pedun-
clerelativetotheregionbetween
dorsal and adipose fins, whereas
the three
Pygocentrus
do not.
4
3
5
2
6
14
15
7
1
16
8
13
12
11
10
9
Pygopristis denticulata
Serrasalmus
go
ul
d
in
g
i
Pygo
cen
trus
pira
ya
P
. na
t
t
er
e
ri
P
.
c
a
rib
a
