The white clouds (usually sparse) were also widely regarded as being composed of tiny crystals of water ice, rather like cirrus in our atmosphere.
The cirrus pouch is small and stout, lying immediately and entirely in front of the ventral sucker.
No spines are present in the ductus or cirrus.
The cirrus-pouch is a conspicuous arcuate structure lying immediately in front of the ventral sucker.
The cirrus-pouch is of simple type and is situated over and in front of the right anterior quadrant of the ventral sucker.
The vesicula seminalis, which lies alongside the cirrus pouch and somewhat behind it, is a little smaller than the posterior portion of the pouch.
This lies behind the cirrus-pouch and is considerably inflated.
The cirrus has a smooth surface with no visible armature.
