0.6 8
I -3
1.5
2.0
3.7
11.2
C M
Fro. 62. Change in form
during growth
of GuZifeuthi~ arnuta after
Issel (1920, Figs.
14, 16, 17, 19)
and Chun (1910,
Plate 69, Figs.
4. 2).
The two largest
from the ventral, the others from the doraal side.
Mantle lengthe i n
cm
are
indicated.