Siphonophora of Scottish National Antarctic Expedition. 81 



only of a few tentacles being present. The pneumatophore is 8 cm. long ; 

 the gastrozociids and gonozooids, 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 







FIG. 3. 



and in some of the zooids. A coloured sketch of a /V///W/", 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 zooids 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. 



(KOV. my. BOO. I'll'"., VCIL. six., '.20.) 



