0 . 3
0.7
3.95 cm
FIG. 32. Top row. Change in form during growth of Pterygioteuthis giardi after Chun
(1910, Plate 12, Figs. 8, 10,6 and 2). Bottom row. Change in form during growth
of Abraliop8ia after Chun (1910, Plate 7, 6, 6). Surface photophores are omitted
from the largest specimen. All from the ventral side. Mantle lengths in cm are
indicated.