20 Proceedings of the Royal Physical Society. 
only of a few tentacles being present. The pneumatophore is 8 cm. long; 
the gastrozodids and gonozodids, though well developed, are much shrunk. 
The three well-preserved specimens from Station 527 differ from those 
of Station 81, in having one tentacle more highly developed than the 
others. 
A faint tinge of pink is still noticeable in parts of their pneumatophores 
Fie. 3. . 
and in some of the zodids. A coloured sketch of a Physalia, which was 
caught at Station 78, was made at the time and shows the edge of the 
crest as being of a delicate pink, whereas the aboral pole of the pneumato- 
phore, the zodids and the tentacles, are depicted as being of a vivid dark 
blue. The three photographs show the turning over on its side of a Physalia, 
which thereby presents a smaller surface to the wind, 
